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Next non-Gaussianity frontier: What can a measurement with σ (fNL)≲1 tell us about multifield inflation?
Doré, Olivier; de Putter, Roland; Gleyzes, Jérôme
Future galaxy surveys promise to probe local primordial non-Gaussianity at unprecedented precision, σ (fNL)≲1 . We study the implications for multifield inflation by considering spectator models, where inflation is driven by the inflaton field, but the primordial perturbations are (partially) generated by a second, spectator field. We p…
(Sub)millimetre interferometric imaging of a sample of COSMOS/AzTEC submillimetre galaxies. III. Environments
Finoguenov, A.; Ilbert, O.; Smolčić, V. +20 more
We investigate the environment of 23 submillimetre galaxies (SMGs) drawn from a signal-to-noise (S/N)-limited sample of SMGs originally discovered in the James Clerk Maxwell Telescope (JCMT)/AzTEC 1.1 mm continuum survey of a Cosmic Evolution Survey (COSMOS) subfield and then followed up with the Submillimetre Array and Plateau de Bure Interferome…
The Ages of Passive Galaxies in a z = 1.62 Protocluster
Papovich, Casey; Tran, Kim-Vy H.; Willmer, Christopher N. A. +9 more
We present a study of the relation between galaxy stellar age and mass for 14 members of the z = 1.62 protocluster IRC 0218, using multiband imaging and HST G102 and G141 grism spectroscopy. Using UVJ colors to separate galaxies into star-forming and quiescent populations, we find that, at stellar masses {M}* ≥slant {10}10.85…
Precise strong lensing mass profile of the CLASH galaxy cluster MACS 2129
Zitrin, A.; Grillo, C.; Balestra, I. +12 more
We present a detailed strong lensing (SL) mass reconstruction of the core of the galaxy cluster MACS J2129.4-0741 (zcl = 0.589) obtained by combining high-resolution Hubble Space Telescope photometry from the CLASH (Cluster Lensing And Supernovae survey with Hubble) survey with new spectroscopic observations from the CLASH-VLT (Very Lar…
The State-of-the-art HST Astro-photometric Analysis of the Core of ω Centauri. II. Differential-reddening Map
Anderson, J.; Bedin, L. R.; King, I. R. +3 more
We take advantage of the exquisite quality of the Hubble Space Telescope astro-photometric catalog of the core of ωCen presented in the first paper of this series to derive a high-resolution, high-precision, high-accuracy differential-reddening map of the field. The map has a spatial resolution of 2 × 2 arcsec2 over a total field of vie…
Polarization of the changing-look quasar J1011+5442
Ramos Almeida, C.; Sluse, D.; Hutsemékers, D. +2 more
If the disappearance of the broad emission lines observed in changing-look quasars were caused by the obscuration of the quasar core through moving dust clouds in the torus, high linear polarization typical of type 2 quasars would be expected. We measured the polarization of the changing-look quasar J1011+5442 in which the broad emission lines hav…
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a?—Hubble Space Telescope Photometry of the 2015 Eruption
Ness, J. -U.; Henze, M.; Shafter, A. W. +14 more
The recurrent nova M31N 2008-12a experiences annual eruptions, contains a near-Chandrasekhar-mass white dwarf, and has the largest mass accretion rate in any nova system. In this paper, we present Hubble Space Telescope (HST) WFC3/UVIS photometry of the late decline of the 2015 eruption. We couple these new data with archival HST observations of t…
Comparative study of the Martian suprathermal electron depletions based on Mars Global Surveyor, Mars Express, and Mars Atmosphere and Volatile EvolutioN mission observations
André, N.; Fedorov, A.; Sauvaud, J. -A. +16 more
Nightside suprathermal electron depletions have been observed at Mars by three spacecraft to date: Mars Global Surveyor, Mars Express, and the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission. This spatial and temporal diversity of measurements allows us to propose here a comprehensive view of the Martian electron depletions through the firs…
The Local [C II] 158 µm Emission Line Luminosity Function
Capak, Peter; Hemmati, Shoubaneh; Faisst, Andreas +4 more
We present, for the first time, the local [C II] 158 µm emission line luminosity function measured using a sample of more than 500 galaxies from the Revised Bright Galaxy Sample. [C II] luminosities are measured from the Herschel PACS observations of the Luminous Infrared Galaxies (LIRGs) in the Great Observatories All-sky LIRG Survey and es…
A Search for L/T Transition Dwarfs with Pan-STARRS1 and WISE. III. Young L Dwarf Discoveries and Proper Motion Catalogs in Taurus and Scorpius-Centaurus
Magnier, Eugene A.; Chambers, K. C.; Flewelling, H. +13 more
We present the discovery of eight young M7-L2 dwarfs in the Taurus star-forming region and the Scorpius-Centaurus OB Association, serendipitously found during a wide-field search for L/T transition dwarfs using Pan-STARRS1 (optical) and WISE (mid-infrared) photometry. We identify PSO J060.3200+25.9644 (near-infrared spectral type L1) and PSO J077.…