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GOODS-ALMA 2.0: Source catalog, number counts, and prevailing compact sizes in 1.1 mm galaxies
Magnelli, B.; Daddi, E.; Elbaz, D. +35 more
Submillimeter/millimeter observations of dusty star-forming galaxies with the Atacama Large Millimeter/submillimeter Array (ALMA) have shown that dust continuum emission generally occurs in compact regions smaller than the stellar distribution. However, it remains to be understood how systematic these findings are. Studies often lack homogeneity i…
ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT). VI. Accretion shocks in the disk of DG Tau and HL Tau
Podio, L.; Bacciotti, F.; Fedele, D. +9 more
Planet-forming disks are not isolated systems. Their interaction with the surrounding medium affects their mass budget and chemical content. In the context of the ALMA-DOT program, we obtained high-resolution maps of assorted lines from six disks that are still partly embedded in their natal envelope. In this work, we examine the SO and SO2
Supermassive black holes at high redshift are expected to be obscured by their massive host galaxies' interstellar medium
Pozzi, F.; Vignali, C.; Gilli, R. +12 more
We combine results from deep ALMA observations of massive (M* > 1010 M⊙) galaxies at different redshifts to show that the column density of their interstellar medium (ISM) rapidly increases toward early cosmic epochs. Our analysis includes objects from the ASPECS and ALPINE large programs, as well as individual …
The Peculiar Short-duration GRB 200826A and Its Supernova
Covino, S.; D'Avanzo, P.; Della Valle, M. +31 more
Gamma-ray bursts (GRBs) are classified into long and short events. Long GRBs (LGRBs) are associated with the end states of very massive stars, while short GRBs (SGRBs) are linked to the merger of compact objects. GRB 200826A was a peculiar event, because by definition it was an SGRB, with a rest-frame duration of ~0.5 s. However, this event was en…
Constraining the evolution of cataclysmic variables via the masses and accretion rates of their underlying white dwarfs
Reichart, D. E.; Knigge, C.; Gänsicke, B. T. +28 more
We report on the masses (MWD), effective temperatures ($\rm{T_\mathrm{eff}}$), and secular mean accretion rates ($\langle \dot{M} \rangle$) of 43 cataclysmic variable (CV) white dwarfs, 42 of which were obtained from the combined analysis of their Hubble Space Telescope ultraviolet data with the parallaxes provided by the Early Third Da…
High star cluster formation efficiency in the strongly lensed Sunburst Lyman-continuum galaxy at z = 2.37
Zanella, A.; Brammer, G.; Castellano, M. +16 more
We investigate the strongly lensed (µ ≃ ×10 − 100) Lyman continuum (LyC) galaxy, dubbed Sunburst, at z = 2.37, taking advantage of a new accurate model of the lens. A characterization of the intrinsic (delensed) properties of the system yields a size of ≃3 sq. kpc, a luminosity of MUV = −20.3, and a stellar mass of M ≃ 109
A very luminous jet from the disruption of a star by a massive black hole
Kulkarni, S. R.; Kilpatrick, Charles D.; Izzo, Luca +78 more
Tidal disruption events (TDEs) are bursts of electromagnetic energy that are released when supermassive black holes at the centres of galaxies violently disrupt a star that passes too close1. TDEs provide a window through which to study accretion onto supermassive black holes; in some rare cases, this accretion leads to launching of a r…
A dusty compact object bridging galaxies and quasars at cosmic dawn
Marques-Chaves, R.; Magdis, G. E.; Colina, L. +18 more
Understanding how super-massive black holes form and grow in the early Universe has become a major challenge1,2 since it was discovered that luminous quasars existed only 700 million years after the Big Bang3,4. Simulations indicate an evolutionary sequence of dust-reddened quasars emerging from heavily dust-obscured starburs…
ARIADNE: measuring accurate and precise stellar parameters through SED fitting
Jenkins, James S.; Vines, Jose I.
Accurately measuring stellar parameters is a key goal to increase our understanding of the observable Universe. However, current methods are limited by many factors, in particular, the biases and physical assumptions that are the basis for the underlying evolutionary or atmospheric models, those that these methods rely upon. Here, we introduce our…
Three-dimensional extinction maps: Inverting inter-calibrated extinction catalogues
Lallement, R.; Cox, N. L. J.; Vergely, J. L.
Context. Three-dimensional (3D) maps of the extinction density in the Milky Way can be built through the inversion of large catalogues of distance-extinction pairs for individual target stars. Considerable progress is currently achieved in this field through the Gaia mission. Available catalogues are based on various types of photometric or spectr…