Search Publications
Gaia DR3 view of dynamical substructure in the stellar halo near the Sun
Ruiz-Lara, Tomás; Helmi, Amina; Matsuno, Tadafumi +4 more
Context. Debris from past merger events is expected and also known, to some extent, to populate the stellar halo near the Sun.
Aims: We aim to identify and characterise such merger debris using Gaia DR3 data supplemented with metallicity and chemical abundance data from LAMOST LRS and APOGEE for halo stars within 2.5 kpc from the Sun.
Me…
An empirical model of the Gaia DR3 selection function
Hogg, David W.; Casey, Andrew R.; Rix, Hans-Walter +12 more
Interpreting and modelling astronomical catalogues requires an understanding of the catalogues' completeness or selection function: what properties determine an object's probability of being including in the catalogue? Here we set out to empirically quantify the completeness of the overall catalogue of Gaia's third data release (DR3). This task is…
TRINITY I: self-consistently modelling the dark matter halo-galaxy-supermassive black hole connection from z = 0-10
Fan, Xiaohui; Aird, James; Yang, Jinyi +5 more
We present TRINITY, a flexible empirical model that self-consistently infers the statistical connection between dark matter haloes, galaxies, and supermassive black holes (SMBHs). TRINITY is constrained by galaxy observables from 0 < z < 10 [galaxies' stellar mass functions, specific and cosmic star formation rates (SFRs), quenched fractions…
A Light in the Dark: Searching for Electromagnetic Counterparts to Black Hole-Black Hole Mergers in LIGO/Virgo O3 with the Zwicky Transient Facility
Djorgovski, S. G.; Rusholme, Ben; Stern, Daniel +11 more
The accretion disks of active galactic nuclei (AGNs) are promising locations for the merger of compact objects detected by gravitational wave (GW) observatories. Embedded within a baryon-rich, high-density environment, mergers within AGNs are the only GW channel where an electromagnetic (EM) counterpart must occur (whether detectable or not). Cons…
The PHANGS-MUSE nebular catalogue
Dale, D. A.; Schinnerer, E.; Groves, B. +17 more
Ionized nebulae provide critical insights into the conditions of the interstellar medium (ISM). Their bright emission lines enable the measurement of physical properties, such as the gas-phase metallicity, across galaxy discs and in distant galaxies. The PHANGS-MUSE survey has produced optical spectroscopic coverage of the central star-forming dis…
Deep Synoptic Array Science: Discovery of the Host Galaxy of FRB 20220912A
Hallinan, Gregg; Fremling, Christoffer; Hodges, Mark +25 more
We report the detection and interferometric localization of the repeating fast radio burst (FRB) source FRB 20220912A during commissioning observations with the Deep Synoptic Array (DSA-110). Two bursts were detected from FRB 20220912A, one each on 2022 October 18 and 2022 October 25. The best-fit position is (R.A. J2000, decl. J2000) = (23:09:04.…
Gaia Data Release 3. The first Gaia catalogue of eclipsing-binary candidates
Mazeh, T.; Audard, M.; Rimoldini, L. +11 more
Context. Gaia Data Release 3 (DR3) provides a number of new data products that complement the early DR3 made available two years ago. Among these is the first Gaia catalogue of eclipsing-binary candidates containing 2 184 477 sources with brightnesses from a few magnitudes to 20 mag in the Gaia G-band and covering the full sky.
Aims: We prese…
Early Results from GLASS-JWST. X. Rest-frame UV-optical Properties of Galaxies at 7 < z < 9
Vulcani, B.; Treu, T.; Castellano, M. +23 more
We present the first James Webb Space Telescope/NIRCam-led determination of 7 < z < 9 galaxy properties based on broadband imaging from 0.8 to 5 µm as part of the GLASS-JWST Early Release Science program. This is the deepest data set acquired at these wavelengths to date, with an angular resolution ≲0.″14. We robustly identify 13 galax…
Gaia Data Release 3. Apsis. III. Non-stellar content and source classification
Hatzidimitriou, D.; Marshall, D. J.; Recio-Blanco, A. +78 more
Context. As part of the third Gaia Data Release, we present the contributions of the non-stellar and classification modules from the eighth coordination unit (CU8) of the Data Processing and Analysis Consortium, which is responsible for the determination of source astrophysical parameters using Gaia data. This is the third in a series of three pap…
The ionizing photon production efficiency at z 6 for Lyman-alpha emitters using JEMS and MUSE
Maiolino, R.; Sun, F.; Egami, E. +21 more
We study the ionizing photon production efficiency at the end of the Epoch of Reionization (z ~ 5.4 - 6.6) for a sample of 30 Ly α emitters. This is a crucial quantity to infer the ionizing photon budget of the universe. These objects were selected to have reliable spectroscopic redshifts, assigned based on the profile of their Ly α emission line,…