Cosmology

Daniel Eisenstein

Daniel Eisenstein

Professor of Astronomy
Chair of the Department

Research Interests:  Cosmology and extragalactic astronomy with a mix of theoretical and observational methods; the development of the baryon acoustic oscillation method to measure the cosmic distance scale and study dark energy.... Read more about Daniel Eisenstein

Perkin Lab, P-326
Harvard-Smithsonian Center for Astrophysics
60 Garden Street, MS-20
Cambridge, MA 02138
p: (617) 495-7530
Xingang Chen

Xingang Chen

Senior Lecturer Harvard Astronomy

Research interests: Theoretical cosmology, including: early universe models; primordial density perturbations; cosmic microwave background; large...

Read more about Xingang Chen
Harvard-Smithsonian Center for Astrophysics
60 Garden Street, MS-51
Cambridge, MA 02138
Office: P-219
p: 617-495-7452
Anna Patej

ITC Graduate Student Anna Patej’s Thesis Honored

October 19, 2016

ITC Graduate Student Anna Patej has been selected as one of three finalists for the 2017 APS Division of Astrophysics Thesis Award, which recognizes original doctoral thesis work of outstanding scientific quality in the area of astrophysics. The pool of nominations was very impressive and it is a great accomplishment to make it into the final round.

As one of three finalists, Anna has been invited to present her thesis in a special invited session at the 2017...

Read more about ITC Graduate Student Anna Patej’s Thesis Honored
Ioana Zelko

Ioana Zelko

Graduate Student
Harvard Smithsonian Center for Astrophysics
60 Garden Street, MS-10
Cambridge, MA 02138
Office: A-201C
p: 617-495-3753
Abraham Loeb. 6/29/2016. “On the Habitability of Our Universe.” In Consolidation of Fine Tuning, edited by D Sloan, Pp. 51. Oxford University. Publisher's VersionAbstract

Is life most likely to emerge at the present cosmic time near a star like the Sun? We consider the habitability of the Universe throughout cosmic history, and conservatively restrict our attention to the context of “life as we know it” and the standard cosmological model, ΛCDM. The habitable cosmic epoch started shortly after the first stars formed, about 30 Myr after the Big Bang, and will end about 10 Tyr from now, when all stars will die. We review the formation history of habitable planets and find that unless habitability around low mass stars is suppressed, life is most likely to exist near ∼ 0.1M stars ten trillion years from now. Spectroscopic searches for biosignatures in the atmospheres of transiting Earth-mass planets around low mass stars will determine whether present-day life is indeed premature or typical from a cosmic perspective.

Pages