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- Centre National de la Recherche ScientifiqueFR447 papers
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269 papers · 1 filter
A trail of dark matter-free galaxies from a bullet dwarf collision
Pieter van Dokkum, Zili Shen, Michael A. Keim +8
The ultra-diffuse galaxies DF2 and DF4 in the NGC1052 group share several unusual properties: they both have large sizes, rich populations of overluminous and large globular cluste…
LEGA-C: analysis of dynamical masses from ionized gas and stellar kinematics at z~0.8
Caroline M. S. Straatman, Arjen van der Wel, Josha van Houdt +12
We compare dynamical mass estimates based on spatially extended stellar and ionized gas kinematics ( and , respectively) of 157 star formi…
A giant shell of ionized gas discovered near M82 with the Dragonfly Spectral Line Mapper pathfinder
Deborah Lokhorst, Roberto Abraham, Imad Pasha +8
We present the discovery of a giant cloud of ionized gas in the field of the starbursting galaxy M82. Emission from the cloud is seen in H and [NII]6583 in data obtained thou…
The Star Formation Burstiness and Ionizing Efficiency of Low-mass Galaxies
Hakim Atek, Lukas Furtak, Pascal Oesch +5
We investigate the burstiness of star formation and the ionizing efficiency of a large sample of galaxies at using HST grism spectroscopy and deep ultraviolet (UV)…
Non-star-forming molecular gas in the Abell 1367 intra-cluster multiphase orphan cloud
Pavel Jáchym, Ming Sun, Masafumi Yagi +7
We report the detection of CO emission in the recently discovered multiphase isolated gas cloud in the nearby galaxy cluster Abell 1367. The cloud is located about 800 kpc in proje…
Extending the SAGA Survey (xSAGA) I: Satellite Radial Profiles as a Function of Host Galaxy Properties
John F. Wu, J. E. G. Peek, Erik J. Tollerud +6
We present "Extending the Satellites Around Galactic Analogs Survey" (xSAGA), a method for identifying low- galaxies on the basis of optical imaging, and results on the spatial…