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College of Arts & Sciences

Hee-Jong Seo

SEO_Hee-Jong REV 491x288 px

Assistant Professor

Physics & Astronomy
Clippinger 335
seoh@ohio.edu
740-593-1714

Recent News

Astronomer Seo Contributes to Largest-Ever Galaxies Survey to Study Dark Energy

Education

Ph.D. Astronomy, University of Arizona. Fall 2001 - Aug 2007

B.S. Astronomy, Summa Cum Laude, University of Arizona. Spring 1999 - Fall 2001

B.S. Physics, Summa Cum Laude, University of Arizona. Spring 1999 - Fall 2001

B. in Pharmacy, Pusan National University (South Korea). Spring 1990 - Spring 1994

Professional Associations

Astrophysical Institute (ApI)

Dark Energy Spectroscopic Instrument (DESI)

The Sloan Digital Sky Survey (SDSS IV) - eBOSS (The Extended baryon Oscillation Spectroscopic Survey)

CV

Courses Taught

Research Interests

At a Glance

Current Graduate Students

Current Undergraduate Students

Work-Related Experience

Grants

Journal Publications

Personal Profile

Courses Taught

Undergraduate: Introduction to Physics: you can explain many of the everyday physical phenomena if you take this course *well*, Kinematics, Newton's laws, circular motions, fluids, thermodynamics; Fundamentals of Astrophysics: Introduction to celestial Mechanics, stellar astrophysics, telescope, galaxies, cosmology

Undergraduate/Graduate: Interstellar Medium and Galaxies: An advanced lecture focusing on galaxies and cosmology

Research Interests

My research interests are in high precision cosmology with large scale structure. I study the distributions of galaxies and matter on very large scales to infer how our Universe has expanded, what our Universe is composed of, and therefore to collect observational clues to identify dark energy and dark matter, which together makes up 95% of Universe while still being quite mysterious.

The main topics of my work involve the detection of the Baryon Acoustic Oscillations (BAO) from the large scale structure of galaxies and matter. This feature was formed in the very early, hot Universe by the sound waves propagated in the plasma of photons and baryons due to the interaction between photon pressure and gravity. The propagating sound waves have been frozen near the epoch of so called 'Recombination' when the baryons and photons are effectively separated.

The current distribution of galaxies and matter still trace the imprint of this primordial sound saves on very large scales. The true size of this feature is known quite accurately; therefore, by comparing the observed size and the known true size, we can estimate the distance to various cosmic epochs. This relation of distance to cosmic epoch encodes the expansion history of the Universe and therefore the properties of dark energy that drives the expansion faster and faster.

The enormous size of this feature (~0.5 billion light years) requires very large galaxy surveys, such as Baryon Oscillations Spectroscopic Survey (BOSS) which has been completed, producing a series of papers recently (https://sdss3.org//science/boss_publications.php), eBOSS (extended BOSS) which is ongoing , Dark Energy Spectroscopic Instrument (DESI) which will start in 2018.

I have been and am actively involved in all these missions.

Along with the BAO features, these surveys also intend to study the large scale streams of the galaxies (i.e, galaxies move around) to study the nature of Gravity, dark matter, and dark energy. My work involves various methods of analyzing the large scale structure of galaxies and matter, including analytical, numerical, observational studies, as a dark energy probe. I am also interested in relating observed galaxies to the underlying dark matter halo distributions, finding the upper limit on neutrino mass using the large scale structure, weak gravitational lensing signal of the dark matter distribution.

At a Glance

Alam, S., et al. (2016). The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
http://arxiv.org/abs/1607.03155v1

Beutler, F., Seo., H.-J., Ross, A., et al. (2016). The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in Fourier-space
http://arxiv.org/abs/1607.03149v1

Beutler, F., Seo., H.-J., Saito, S., et al., (2016). The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Anisotropic galaxy clustering in Fourier-space
http://arxiv.org/abs/1607.03150v1

Seo, H.-J., Beutler, F., Ross, A. J., Saito, S. (2016) Modeling the reconstructed BAO in Fourier space MNRAS, 460, 2453
http://arxiv.org/abs/1511.00663v2

Seo, H.-J. & Hirata, C. M. (2016). The foreground wedge and 21 cm BAO surveys MNRAS, 456, 3142
http://arxiv.org/abs/1508.06503v2

Seo, H.-J. & Eisenstein, D. J. (2007). Improved Forecasts for the Baryon Acoustic Oscillations and Cosmological Distance Scale., ApJ, 665, 14
http://arxiv.org/abs/astro-ph/0701079

Eisenstein, D. J., Seo, H.-J., Sirko, E., & Spergel, D. (2007). Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak. ApJ, 664, 675
http://arxiv.org/abs/astro-ph/0604362

Seo, H.-J., & Eisenstein, D. J. (2003). Probing Dark Energy with Baryonic Acoustic Oscillations from Future Large Galaxy Redshift Surveys. ApJ, 598, 720
http://adsabs.harvard.edu/abs/2003ApJ...598..720S

Current Graduate Students

Current Undergraduate Students

  • Charles Seacrist
  • Brandon Coleman

Work-Related Experience

Ohio University, Department of Physics & Astronomy

Assistant Professor (Aug 2014 - present)

Ohio State University

CCAPP Fellow (Sep 2013 -- Aug 2014)

University of California at Berkeley

BCCP Fellow (Sep 2010 -- Aug 2013)

Fermilab

Research Associate: Theoretical Astrophysics (Oct 2007 -- Aug 2010)

University of Arizona

Teaching Assistant (Graduate) Steward Observatory (Spring 2007)

Research Assistant (Graduate) Steward Observatory (for Dr. D. Eisenstein) (Spring 2005-- Aug 2007)

Teaching Assistant (Graduate) Steward Observatory (Fall 2004)

Research Assistant (Graduate) Steward Observatory (for Dr. D. Eisenstein) (Fall 2001-- Spring 2004)

Research Assistant (Undergraduate) Steward Observatory (for Dr. G. Rieke) (Fall 1999-- Spring 2001)

Pharmacist

South Korea (1994-1998)

Grants

“Improving Dark Energy Constraints Using Low Redshift Large Scale Structures, DE-SC0014329,” Department of Energy, Office of Science, Office of High Energy Physics, $280,000.

Journal Publications

1. Constraining the Baryon-Dark Matter Relative Velocity with the Large-Scale 3-Point Correlation Function of the SDSS BOSS DR12 CMASS Galaxies
Slepian, Z., Eisenstein, D.-J., Blazek, J.-A., et al. 2016
http://arxiv.org/abs/1607.06098

2. Detection of Baryon Acoustic Oscillation Features in the Large-Scale 3-Point Correlation Function of SDSS BOSS DR12 CMASS Galaxies
Slepian, Z., Eisenstein, D.-J., Brownstein, J.-R., et al. 2016
http://arxiv.org/abs/1607.06097

3. The Clustering of Galaxies in the Completed SDSS-III Baryon Oscillation Spectroscopic Sur- vey: Cosmic Flows and Cosmic Web from Luminous Red Galaxies
Ata, M., Kitaura, F., Chuang, C.-H., et al. 2016
http://arxiv.org/abs/1605.09745v1

4. Redshift Measurement and Spectral Classification for eBOSS Galaxies with the Redmonster Software
Hutchinson, T., Bolton, A., Dawson, K., et al. 2016
http://arxiv.org/abs/1607.02432v1

5. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
Alam et al. 2016
http://arxiv.org/abs/1607.03155v1

6. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Cosmological implications of the Fourier space wedges of the final sample
Grieb, J. N., Sanchez, A. G., Salazar-Albornoz, S. et al. 2016
http://arxiv.org/abs/1607.03143v1

7. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological implications of the configuration-space clustering wedges
Sanchez, A.G., Scoccimarro, R., Crocce, M., et al. 2016
http://arxiv.org/abs/1607.03147v1

8. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in Fourier-space
Beutler, F., Seo, H.-J., Ross, A., et al. 2016
http://arxiv.org/abs/1607.03149v1

9. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Observational systematics and baryon acoustic oscillations in the correlation function
Ross, A. J., Beutler, F., Chuang, C.-H., et al. (Seo, H.-J 5th author) 2016
http://arxiv.org/abs/1607.03145v1

10. BOSS DR12 combined galaxy sample: The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: On the measurement of growth rate using galaxy correlation functions
Satpathy, S., Alam, S., Ho, S., et al. 2016
http://arxiv.org/abs/1607.03148v1

11. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: combining correlated Gaussian posterior distributions
Sanchez, A., Grieb, J. N., Salazar-Albornoz, S. et al. 2016
http://arxiv.org/abs/1607.03146v1

12. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: double-probe measurements from BOSS galaxy clustering \& Planck data -- towards an analysis without informative priors
Pellejero-Ibanez, M., Chuang, C.-H., Rubio-Martin, J.A., et al., 2016
http://arxiv.org/abs/1607.03152v1

13. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Anisotropic galaxy clustering in Fourier-space
Beutler, F., Seo, H.-J., Saito, S., et al., 2016
http://arxiv.org/abs/1607.03150v1

14. The large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies
Slepian, Z., Eisenstein, D. J., et al., 2016
http://arxiv.org/abs/1512.02231v1

15. Modeling the reconstructed BAO in Fourier space
Seo, H.-J., Beutler, F., Ross, A. J., Saito, S., 2016 MNRAS, 460, 2453, 2016.
http://arxiv.org/abs/1511.00663v2

16. The foreground wedge and 21 cm BAO surveys
Seo, H.-J. & Hirata, C. M., 2016, MNRAS, 456, 3142, 2015
http://arxiv.org/abs/1508.06503v2

17. The SDSS-IV extended Baryonic Oscillation Spectroscopic Survey: Luminous Red Galaxy Target Selection
Prakash, A., Licquia, T. C., Newman, J. A., et al., ApJS, 224, 34, 2016
http://arxiv.org/abs/1508.04478v1

18. The extended Baryon Oscillation Spectroscopic Survey (eBOSS): a cosmological forecast
Zhao, G.-B., Wang, Y., Ross, A. J., et al., MNRAS, 457, 2377, 2016
http://arxiv.org/abs/1510.08216v2

19. The BOSS-WiggleZ overlap region I: Baryon Acoustic Oscillations
Beutler, F., Blake, C., Koda, J., et al., MNRAS, 455, 3230, 2016
http://arxiv.org/abs/1506.03900

20. The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Overview and Early Data
Dawson, K., Kneib, J.-P., Percival, W., et al., ApJ, 151, 44, 2016
http://arxiv.org/abs/1508.04473v219.

21. The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
Alam, S., Albareti, F. D., Allende Prieto, C., et al., ApJS, 219, 12, 2015
http://arxiv.org/abs/1501.00963

22. Cosmological implications of baryon acoustic oscillation (BAO) measurements Aubourg,
E Ì., Bailey, S., Bautista, J. E., et al., Phys. Rev. D, 92, 123516, 2015
http://arxiv.org/abs/1411.1074

23. The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Quasar Target Selection
Myers, A. D., Palanque-Delabrouille, N., Prakash, A., et al., ApJS, 221, 27, 2015
http://arxiv.org/abs/1508.04472v2

24. Sloan Digital Sky Survey III photometric quasar clustering: probing the initial conditions of the Universe
Ho, S., Agarwal, N., Myers, A. D., Lyons, R., Disbrow, A., Seo, H.-J., et al., J. Cosmology and Nongalactic Astrophysics Astropart. Phys., 5, 040, 2015
http://arxiv.org/abs/1311.2597

25. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Signs of neutrino mass in current cosmological data sets
Beutler, F., Saito, S., Brownstein, J. R., et al., MNRAS, 444, 4, 16, 2014
http://arxiv.org/abs/1403.4599

26. The SDSS Coadd: 250 deg2 of deep SDSS imaging on Stripe 82
Annis, J., Soares-Santos, M., Strauss, M. A., et al. (Seo, H.-J. 18th author), ApJ, 794, 2, 18, 2015
http://arxiv.org/abs/1111.6619

27. A 2.5 per cent measurement of the growth rate from small-scale redshift space clustering of SDSS-III CMASS galaxies
Reid, Beth A., Seo, H.-J., Leauthaud, A., Tinker, J. L., White, M., MNRAS, 444, 476, 2014

28. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: testing gravity with redshift space distortions using the power spectrum multipoles
Beutler, F., Saito, S., Seo, H.-J., et al., MNRAS, 443, 1065, 2014
http://arxiv.org/abs/1312.4611

29. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Releases 10 and 11 Galaxy samples
Anderson, L., Aubourg, E Ì,., Bailey, S., et al. 2014, MNRAS, 441, 24
http://arxiv.org/abs/1312.4877

30. DESI and other Dark Energy experiments in the era of neutrino mass measurements
Font-Ribera, A., McDonald, P., Mostek, N., Reid, B. A., Seo, H.-J., Slosar, A., 2014, J. Cosmology Astropart. Phys., 5, 23
http://arxiv.org/abs/1308.4164

31. The clustering of Galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: including covariance matrix errors
Percival, W. J., Ross, A. J., Sanchez, A. G., et al. 2014, MNRAS, 439, 2531
http://arxiv.org/abs/1312.4841

32. Characterizing unknown systematics in large scale structure surveys
Agarwal, N., Ho, S., Myers, A. D., Seo, H.-J. et al. 2014, J. Cosmology Astropart. Phys., 4, 7
http://arxiv.org/abs/1309.2954

33. The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment
Ahn, C. P., Alexandroff, R., Allende Prieto, C., et al. 2014, ApJS, 211, 17
http://arxiv.org/abs/1307.7735

34. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring DA and H at z = 0.57 from the baryon acoustic peak in the Data Release 9 spectroscopic Galaxy sample
Anderson, L., Aubourg, E., Bailey, S., et al. 2014, MNRAS, 439, 83
http://arxiv.org/abs/1303.4666

35. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring H(z) and DA(z) at z = 0.57 with clustering wedges
Kazin, E. A., S Ì,anchez, A. G., Cuesta, A. J., et al. 2013, MNRAS, 435, 64
http://arxiv.org/abs/1303.4391

36. The Baryon Oscillation Spectroscopic Survey of SDSS-III
Dawson, K. S., Schlegel, D. J., Ahn, C. P., et al. 2013, AJ, 145, 10
http://arxiv.org/abs/1208.0022

37. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 9 Spectroscopic Galaxy Sample
Anderson, L., Aubourg, E., Bailey, S., et al. 2012, MNRAS, 427, 3435
http://arxiv.org/abs/1203.6594

38. The Clustering of Galaxies in SDSS-III DR9 Baryon Oscillation Spectroscopic Survey: Constraints on Primordial Non-Gaussianity
Ross, A. et al. 2012, MNRAS, 150
http://arxiv.org/abs/1208.1491

39. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering
Reid, B. et al. 2012, MNRAS, 426, 2719
http://arxiv.org/abs/1203.6641

40. Acoustic scale from the angular power spectra of SDSS-III DR8 photometric luminous galaxies
Seo, H.-J. et al., 2012, ApJ, 761, 13
http://arxiv.org/abs/1201.2172

41. Clustering of Sloan digital sky survey III photometric luminous galaxies and its cosmological implications
Ho, S., Cuesta, A., Seo, H.-J. et al., 2012, ApJ, 761, 14
http://arxiv.org/abs/1201.2137

42. New Neutrino Mass Bounds from SDSS-III DR8 Photometric Luminous Galaxies
de Putter, R., Mena, O., Guisarma, E., Ho, S., Cuesta, A., Seo, H.-J. et al. 12
http://arxiv.org/abs/1201.1909

43. The SDSS Coadd: Cosmic Shear Measurement
Lin, Huan., Dodelson, S., Seo, H.-J. et al., 2012, ApJ, 761, 15
http://arxiv.org/abs/1111.6622

44. The SDSS Coadd: Weak Lensing around Clusters
Simet, M., Kubo, J. M., Dodelson, S., et al. (Seo, H.-J. 10th author), 2012, ApJ, 748, 128
http://arxiv.org/abs/1111.6621

45. The SDSS Coadd: A Galaxy Photometric Redshift Catalog
Reis, R. R. R., Soares-Santos, M., Annis, J., et al. (Seo, H.-J. 9th author), 2012, ApJ, 747, 59
http://arxiv.org/abs/1111.6620

46. Dark Energy from the log-transformed convergence field
Seo, H.-J., Sato, M., Takada, M., & Dodelson, S., 2012, ApJ, 748, 57
http://arxiv.org/abs/1109.5639

47. Ameliorating systematic uncertainties in the angular clustering of galaxies: a study using the SDSS-III
Ross, A. J et al. (Seo, H.-J. 11th author) 2011, MNRAS, 417, 1350
http://arxiv.org/abs/1105.2320

48. The BigBOSS Experiment
Schlegel et. al. 2011
http://arxiv.org/abs/1106.1706

49. Galaxy Bias and Its Effects on the Baryon Acoustic Oscillation Measurements
Mehta K. T., Seo, H.-J., Eckel, J., et al. 2011, ApJ, 734, 94
http://arxiv.org/abs/1104.1178

50. Re-capturing Cosmic Information
Seo, H.-J., Sato, M., Dodelson, S., Jain, B., & Takada, M. 2011, ApJ, 729, L11
http://arxiv.org/abs/1008.0349

51. A Ground-Based 21cm Baryon Acoustic Oscillations
Seo, H.-J., Dodelson, S., Marriner, J., Mcginnis, D., Stebbins, A., Stoughton, C., Vallinotto A., 2010, ApJ, 721, 164
http://arxiv.org/abs/0910.5007

52. High-precision Predictions for the Acoustic Scale in the Non-linear Regime
Seo, H.-J., Eckel, J., Eisenstein, D. J., et al. 2010, ApJ, 720, 1650
http://arxiv.org/abs/0910.5005

53. A New Statistic for Analyzing Baryon Acoustic Oscillations
Xu, X., White, M., Padmanabhan, N., Eisenstein, D. J., et al. (Seo, H.-J. 9th author) 2010, ApJ, 718, 1224
http://arxiv.org/abs/1001.2324

54. Modeling the Large-scale Bias of Neutral Hydrogen
Marin, F. A., Gnedin, N. Y., Seo, H.-J., & Vallinotto, A. ApJ, 718, 972, 2010
http://arxiv.org/abs/0911.0041

55. First-year Sloan Digital Sky Survey-II (SDSS-II) supernova results: consistency and constraints with other intermediate-redshift datasets
Lampeitl, H., Nichol, R. C., Seo, H. -J. et al. 2010, MNRAS, 401, 2331
http://arxiv.org/abs/0910.2193

56. The Sloan Nearby Cluster Weak Lensing Survey
Kubo, J. M. et al. (Seo, H.-J. 10th author) 2009, ApJ, 702, L110
http://arxiv.org/abs/0908.1532

57. Nonlinear Structure Formation and the Acoustic Scale
Seo, H.-J., Siegel, E. R., Eisenstein, D. J., & White, M. 2008, ApJ, 686, 13
http://arxiv.org/abs/0805.0117

58. Passive Evolution of Galaxy Clustering
Seo, H. -J., Eisenstein, D. J. & Zehavi, I. 2008, ApJ, 681, 998
http://arxiv.org/abs/0712.1643

59. Improved Forecasts for the Baryon Acoustic Oscillations and Cosmological Distance Scale
Seo, H. -J. & Eisenstein, D. J. 2007, ApJ, 665, 14
http://arxiv.org/abs/astro-ph/0701079

60. Cosmological Constraints from the SDSS Luminous Red Galaxies
Tegmark, M., et al. (Seo, H.-J. 19th author) 2006, Phys. Rev. D, 74, 123507
http://arxiv.org/abs/astro-ph/0608632

61. The three-point correlation function of luminous red galaxies in the Sloan Digital Sky Survey
Kulkarni, G. V., Nichol, R. C., Sheth, R. K., Seo, H.-J., Eisenstein, D. J., & Gray, A. 2007, MNRAS, 378, 1196
http://arxiv.org/abs/astro-ph/0703340

62. Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
Eisenstein, D. J., Seo, H.-J., Sirko, E., & Spergel, D. 2007, ApJ, 664, 675
http://arxiv.org/abs/astro-ph/0604362

63. On the Robustness of the Acoustic Scale in the Low-Redshift Clustering of Matter
Eisenstein, D. J., Seo, H.-J. & White, M. 2007, ApJ, 664, 660
http://arxiv.org/abs/astro-ph/0604361

64. Baryonic Acoustic Oscillations in Simulated Galaxy Redshift Surveys
Seo, H.-J., & Eisenstein, D. J. 2005, ApJ, 633, 575
http://arxiv.org/abs/astro-ph/0507338

65. Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
Eisenstein, D. J., et al. (Seo, H.-J. 8th author) 2005, ApJ, 633, 560
http://arxiv.org/abs/astro-ph/0501171

66. Probing Dark Energy with Baryonic Acoustic Oscillations from Future Large Galaxy Redshift Surveys
Seo, H.-J., & Eisenstein, D. J. 2003, ApJ, 598, 720
http://adsabs.harvard.edu/abs/2003ApJ...598..720S          

Personal Profile

I was born in Busan, South Korea. Due to external circumstances, I pursued my education in a college of pharmacy in the Busan National University instead of studying astrophysics which had been my dream. After a few years of working in local pharmacies and a hospital to save enough money to come to the United States and study astrophysics, I was accepted in the undergraduate program of the University of Arizona in the spring of 1999. There I studied disk properties of young stellar objects alongside my mentor and adviser, Dr. George Rieke.

I graduated in 2001with a B.S. in astronomy and physics and was accepted to the graduate program of the University of Arizona. I worked on the large scale structure of the Universe under the guidance of Dr. Daniel Eisenstein and graduated with a PhD in 2007. I then moved to Fermilab and worked as a postdoc for the next three years. In 2010, I became a fellow at the Berkeley Center for Cosmological Physics at the University of California. Three years later I received an offer to join the faculty at Ohio University. In 2013, I moved to Columbus, Ohio, to spend one year as a CCAPP Postdoctoral Fellow at Ohio State University, and moved to Athens in the Fall, 2014.

My research interests are in high precision cosmology with large scale structure. I study the distributions of galaxies and matter on very large scales to infer how our Universe has expanded, what our Universe is composed of, and therefore to collect observational clues to identify dark energy and dark matter, which together makes up 95% of Universe while still being quite mysterious.

My work involves various methods of analyzing the large scale structure of galaxies and matter, including analytical, numerical, observational studies of Baryon Acoustic Oscillations (BAO), a distinct feature imprinted in large galaxy surveys and or radio surveys, as a dark energy probe. I am also interested in relating observed galaxies to the underlying dark matter halo distributions, finding the upper limit on neutrino mass using the large scale structure, weak gravitational lensing signal of the dark matter distribution.

Outside of work, I am a mother of two young children and that keeps me quite busy. My non-astrophysics investigations are on-going; to look for cool playgrounds and places for family outings.


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College of Arts & Sciences