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The VISTA Variables in the Vía Láctea extended (VVVX) ESO public survey: Completion of the observations and legacy
Tamura, M.; Schultheis, M.; Minniti, D. +143 more
Context. The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from 2009–2015. Upon its conclusion, the complementary VVV extended (VVVX) survey has expanded both the temporal as well as spatial coverage of the original VVV area, widening it from 562 to 1700 sq. deg.…
β Cephei Pulsators in Eclipsing Binaries Observed with TESS
Handler, Gerald; Eze, Christian I.
The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious discrepancies between observations and models of stellar structure and the evolution of massive stars. This p…
Tracing the rise of supermassive black holes. A panchromatic search for faint, unobscured quasars at z ≳ 6 with COSMOS-Web and other surveys
Casey, Caitlin M.; Koekemoer, Anton M.; Wilkins, Stephen M. +20 more
We report the identification of 64 new candidates of compact galaxies, potentially hosting faint quasars with bolometric luminosities of Lbol = 1043-1046 erg s−1, residing in the reionization epoch within the redshift range of 6 ≲ z ≲ 8. These candidates were selected by harnessing the rich multiband dat…
The Millions of Optical-Radio/X-ray Associations (MORX) Catalogue, v2
Flesch, Eric Wim
Announcing the release v2 of the MORX (Millions of Optical-Radio/X-ray Associations) catalogue which presents probable (40%-100% likelihood) radio/X-ray associations, including double radio lobes, to optical objects over the whole sky. Detections from all the largest radio/X-ray surveys to June 2023 are evaluated, those surveys being VLASS, LoTSS,…
The Symbiotic X-Ray Binary IGR J16194-2810: A Window on the Future Evolution of Wide Neutron Star Binaries From Gaia
El-Badry, Kareem; Nagarajan, Pranav; Reggiani, Henrique +1 more
We present optical follow-up of IGR J16194-2810, a hard X-ray source discovered by the INTEGRAL mission. The optical counterpart is a ∼500 L ⊙ red giant at a distance of 2.1 kpc. We measured 17 radial velocities (RVs) of the giant over a period of 271 days. Fitting these RVs with a Keplerian model, we find an orbital period of P or…
The ALPINE-ALMA [C II] survey: characterization of spatial offsets in main-sequence galaxies at z 4-6
Koekemoer, Anton M.; Carniani, Stefano; Jones, Gareth C. +22 more
The morphology of galaxies is shaped by stellar activity, feedback, gas and dust properties, and interactions with surroundings, and can therefore provide insight into these processes. In this paper, we study the spatial offsets between stellar and interstellar medium emission in a sample of 54 main-sequence star-forming galaxies at z ~ 4-6 observ…
PDRs4All: X. ALMA and JWST detection of neutral carbon in the externally irradiated disk d203-506: Undepleted gas-phase carbon
Le Bourlot, J.; Le Petit, F.; Roueff, E. +26 more
The gas-phase abundance of carbon, xC = [C/H]gas = xC+ + xC0 + xCO + … , and its depletion factors are essential parameters for understanding the gas and solid compositions that are ultimately incorporated into (exo)planets. The majority of protoplanetary disks are born i…
Missing metals in DQ stars: a compelling clue to their origin
Wilson, T. G.; Dufour, P.; Farihi, J.
White dwarf stars frequently experience external pollution by heavy elements, and yet the intrinsically carbon-enriched DQ spectral class members fail to exhibit this phenomenon, representing a decades-old conundrum. This study reports a high-resolution spectroscopic search for Ca II in classical DQ white dwarfs, finding that these stars are stunt…
Separation of dust emission from the cosmic infrared background in Herschel observations with wavelet phase harmonics
Miville-Deschênes, Marc-Antoine; Béthermin, Matthieu; Lagache, Guilaine +7 more
The low-brightness dust emission at high Galactic latitudes is of interest with respect to studying the interplay among the physical processes involved in shaping the structure of the interstellar medium (ISM), as well as in statistical characterizations of the dust emission as a foreground to the cosmic microwave background (CMB). Progress in thi…
EIGER IV. The Cool 104 K Circumgalactic Environment of High-redshift Galaxies Reveals Remarkably Efficient Intergalactic Medium Enrichment
Simcoe, Robert A.; Kashino, Daichi; Eilers, Anna-Christina +8 more
We report new observations of the cool diffuse gas around 29, 2.3 < z < 6.3 galaxies using deep JWST/NIRCam slitless grism spectroscopy around the sight line to the quasar J0100+2802. The galaxies span a stellar mass range of $7.1\leqslant {\rm{log}}{M}_{\ast }/{M}_{\odot }\leqslant 10.7$ , and star formation rates (SFRs) of $-0.1\lt \mathrm…