Search Publications
Demographics of Young Stars and their Protoplanetary Disks: Lessons Learned on Disk Evolution and its Connection to Planet Formation
Lodato, G.; Williams, J. P.; Ansdell, M. +4 more
Since Protostars and Planets VI (PPVI), our knowledge of the global properties of protoplanetary and debris disks, as well as of young stars, has dramatically improved. At the time of PPVI, mm-observations and optical to near-infrared spectroscopic surveys were largely limited to the Taurus star-forming region, especially of its most massive disk …
Early Release Science of the exoplanet WASP-39b with JWST NIRSpec G395H
Carter, Aarynn L.; Gibson, Neale P.; Mikal-Evans, Thomas +89 more
Measuring the abundances of carbon and oxygen in exoplanet atmospheres is considered a crucial avenue for unlocking the formation and evolution of exoplanetary systems1,2. Access to the chemical inventory of an exoplanet requires high-precision observations, often inferred from individual molecular detections with low-resolution space-b…
The JWST FRESCO survey: legacy NIRCam/grism spectroscopy and imaging in the two GOODS fields
Chisholm, J.; Wuyts, S.; Schaerer, D. +38 more
We present the JWST cycle 1 53.8 h medium program FRESCO, short for 'First Reionization Epoch Spectroscopically Complete Observations'. FRESCO covers 62 arcmin2 in each of the two GOODS/CANDELS fields for a total area of 124 arcmin2 exploiting JWST's powerful new grism spectroscopic capabilities at near-infrared wavelengths. …
Gaia Data Release 3. Astrophysical parameters inference system (Apsis). I. Methods and content overview
Hatzidimitriou, D.; Bouret, J. -C.; Marshall, D. J. +86 more
Gaia Data Release 3 contains a wealth of new data products for the community. Astrophysical parameters are a major component of this release, and were produced by the Astrophysical parameters inference system (Apsis) within the Gaia Data Processing and Analysis Consortium (DPAC). The aim of this paper is to describe the overall content of the astr…
Gaia Data Release 3. Analysis of the Gaia BP/RP spectra using the General Stellar Parameterizer from Photometry
Hatzidimitriou, D.; Marshall, D. J.; Recio-Blanco, A. +80 more
Context. The astrophysical characterisation of sources is among the major new data products in the third Gaia Data Release (DR3). In particular, there are stellar parameters for 471 million sources estimated from low-resolution BP/RP spectra.
Aims: We present the General Stellar Parameterizer from Photometry (GSP-Phot), which is part of the a…
Gaia Data Release 3. Processing and validation of BP/RP low-resolution spectral data
Gilmore, G.; Harrison, D. L.; Bailer-Jones, C. A. L. +51 more
Context. Blue (BP) and Red (RP) Photometer low-resolution spectral data are one of the exciting new products in Gaia Data Release 3 (Gaia DR3). These data have also been used to derive astrometry and integrated photometry in Gaia Early Data Release 3 and astrophysical parameters and Solar System object reflectance spectra in Gaia DR3.
Aims: I…
Gaia Data Release 3. Catalogue validation
Jordi, C.; Luri, X.; Anders, F. +40 more
Context. The third Gaia data release (DR3) provides a wealth of new data products. The early part of the release, Gaia EDR3, already provided the astrometric and photometric data for nearly two billion sources. The full release now adds improved parameters compared to Gaia DR2 for radial velocities, astrophysical parameters, variability informatio…
JWST/NIRSpec spectroscopy of z = 7-9 star-forming galaxies with CEERS: new insight into bright Lyα emitters in ionized bubbles
Charlot, Stéphane; Chen, Zuyi; Tang, Mengtao +9 more
We describe new JWST/NIRSpec observations of galaxies at z ≳ 7 taken from the CEERS survey. Previous observations of this area have revealed associations of Lyα emitters at redshifts (z = 7.5, 7.7, and 8.7) where the intergalactic medium (IGM) is thought to be mostly neutral, leading to suggestions that these systems are situated in large ionized …
Identification of carbon dioxide in an exoplanet atmosphere
Henning, Thomas; Fortney, Jonathan J.; Carter, Aarynn L. +129 more
Carbon dioxide (CO2) is a key chemical species that is found in a wide range of planetary atmospheres. In the context of exoplanets, CO2 is an indicator of the metal enrichment (that is, elements heavier than helium, also called `metallicity')1-3, and thus the formation processes of the primary atmospheres of hot g…
The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V
Qiu, Dan; Trump, Jonathan R.; Shen, Yue +152 more
The eighteenth data release (DR18) of the Sloan Digital Sky Survey (SDSS) is the first one for SDSS-V, the fifth generation of the survey. SDSS-V comprises three primary scientific programs or "Mappers": the Milky Way Mapper (MWM), the Black Hole Mapper (BHM), and the Local Volume Mapper. This data release contains extensive targeting information …