Résumé / Abstract Journal-club_Galaxies

Journal-club Galaxies

« Evolution of galaxies and stars with the “Cosmic Evolution Through Ultraviolet Spectroscopy” (CETUS) space mission »

Sara Heap
NASA Goddard Space Flight Center (GSFC) (Greenbelt, Maryland, Etats-Unis d'Amérique)

CETUS (“Cosmic Evolution Through Ultraviolet Spectroscopy”) is a mission concept that was selected by NASA for
study as a Probe-class mission, meaning a mission whose full life-cycle cost to NASA is between $400M and $1.0B.
CETUS has a wide-field UV telescope that will work with other survey telescopes observing at gamma-rays to radio
waves to help solve major problems in galaxy and stellar astrophysics. CETUS features a 1.5-m telescope and two widefield
survey instruments, a near-UV multi-object slit spectrograph (MOS), a near-UV/ far-UV camera. It also has a near-
UV/far-UV imaging spectrograph to survey classes of astronomical objects one at a time. In this paper, we describe how
CETUS will address questions posed by the 2010 Astrophysics Decadal Survey panel (Astro-2010) including: what are
the drivers of galaxy evolution at the peak rate of star formation; what are the path(s) of evolution from the blue cloud to
the red sequence; how do the lives of massive stars end; and how does the circumgalactic medium influence galaxy
evolution and vice versa.
jeudi 25 octobre 2018 - 11:30
Salle 281, Institut d'Astrophysique
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