Dear colleagues,
this week we are happy to have David Phillips from the Walsworth group introducing us to
their latest work using the astro-comb.
Kind regards,
Richard and Swati
ITAMP Topical Lunch Discussion
Date: Friday, January 23d
Time: 12:00-1:30 pm
Pizza will be served.
Location: B-106 @ Center for Astrophysics (60 Garden Street)
Directions: after entering the lobby of the CfA, turn right to enter the hallway of the B
building. In the hallway, turn right again, and B-106 is there.
Speaker: David F. Phillips (Walsworth group), CFA
Title: Towards detecting terrestrial exoplanets via sub-m/s radial velocity measurements
of the Sun using the astro-comb
Abstract: We have recently demonstrated sub-m/s sensitivity in the radial velocity between
the Earth and Sun using a simple, home-built solar telescope feeding the HARPS-N
spectrograph calibrated with the astro-comb. We plan in the coming year to use the
astro-comb calibrated spectrograph and solar telescope to detect the solar radial velocity
signal from Venus and demonstrate sensitivity of these instruments to detect terrestrial
exoplanets. In this talk I will present the astro-comb, results from the astro-comb
calibrating the HARPS-N exoplanet searcher spectrograph, solar radial velocity stability
and plans for observing the signature of Venus.
---------------------------
Dr. Richard Schmidt
Institute for Theoretical Atomic, Molecular, and Optical Physics (ITAMP)
Harvard-Smithsonian Center for Astrophysics MS-14
60 Garden St.
Cambridge, MA 02138
U.S.A.
richard.schmidt(a)cfa.harvard.edu
Tel. +1 (617) 496-7610
Fax +1 (617) 496-7668
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