Results 1 to 10 of about 1,248,878 (240)

The MOST Hosts Survey: Spectroscopic Observation of the Host Galaxies of ∼40,000 Transients Using DESI

open access: yesThe Astrophysical Journal Supplement Series
We present the Multi-Object Spectroscopy of Transient (MOST) Hosts survey. The survey is planned to run throughout the 5 yr of operation of the Dark Energy Spectroscopic Instrument (DESI) and will generate a spectroscopic catalog of the hosts of most ...
Maayane T. Soumagnac   +56 more
doaj   +1 more source

Barium Abundances from the LAMOST Medium-Resolution Survey Stellar Spectra

open access: yesThe Astrophysical Journal Supplement Series
Based on a template-matching method, we estimate the barium (Ba) abundances for stellar spectra from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Medium-Resolution Spectroscopic Survey (MRS).
Tian-Yi Chen   +9 more
doaj   +1 more source

Technosignature Searches with Real-time Alert Brokers

open access: yesThe Astronomical Journal
We present an exploration of technosignature research that is possible using real-time alert brokers from surveys such as the Zwicky Transient Facility (ZTF) and the upcoming Legacy Survey of Space and Time (LSST).
Eleanor M. Gallay   +2 more
doaj   +1 more source

The Vera C. Rubin Observatory Data Preview 1

open access: yesThe Astronomical Journal
We present Rubin Data Preview 1 (DP1), the first data from the National Science Foundation–Department of Energy Vera C. Rubin Observatory, comprising raw and calibrated single-epoch images, coadds, difference images, detection catalogs, and ancillary ...
Vera C. Rubin Observatory Team   +330 more
doaj   +1 more source

Broadband Spectral Modeling of Prompt Emission from Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite

open access: yesThe Astrophysical Journal
Optical observations of gamma-ray bursts (GRBs) contemporaneous with their prompt high-energy emission are rare, but they can provide insights into the physical processes underlying these explosive events.
Rahul Jayaraman   +3 more
doaj   +1 more source

Photometric Redshift Probability Density Functions via Neural Network Classification for DESI Legacy Imaging Surveys and Pan-STARRS

open access: yesThe Astrophysical Journal Supplement Series
We present a neural network classification (NNC) method for photometric redshift estimation that produces well-calibrated redshift probability density functions (PDFs).
Da-Chuan Tian   +2 more
doaj   +1 more source

Asteroid spin-rate studies using large sky-field surveys

open access: yesGeoscience Letters, 2017
Eight campaigns to survey asteroid rotation periods have been carried out using the intermediate Palomar Transient Factory in the past 3 years. 2780 reliable rotation periods were obtained, from which we identified two new super-fast rotators (SFRs ...
Chan-Kao Chang   +7 more
doaj   +1 more source

Photometric Analysis of Asteroids in the Phocaea Region

open access: yesThe Astronomical Journal
The Phocaea asteroid family, one of the large ancient families located in the inner main belt, may be the sources of near-Earth asteroids (NEAs) due to the nearby 3:1 mean motion resonance with Jupiter, the ν 6 secular resonance, and the Yarkovsky and ...
Xiaoyun Xu   +9 more
doaj   +1 more source

A Holistic Exploration of the Potentially Recoverable Redshift Information of Stage IV Galaxy Surveys

open access: yesThe Astrophysical Journal
Extragalactic science and cosmology with Stage IV galaxy surveys will rely almost exclusively on redshift measurements derived solely from photometry, which are subject to systematic and statistical uncertainties with numerous analysis choices.
Bryan R. Scott   +2 more
doaj   +1 more source

Exploring Unobscured Quasi-stellar Objects in the Southern Hemisphere with KS4

open access: yesThe Astrophysical Journal Supplement Series
We present a catalog of unobscured quasi-stellar object (QSO) candidates in the Southern Hemisphere from the early interim data of the KMTNet Synoptic Survey of Southern Sky (KS4).
Yongjung Kim   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy