1,143 datasets found

We have used the multiobject mode of the Near-Infrared Spectrograph (NIRSpec) on board the James Webb Space Telescope (JWST) to obtain low-resolution 1-5um spectra of 22 brown...

We report the serendipitous discovery of Gaia17bpp / 2MASS_J19372316+1759029, a binary star with a deep single large-amplitude dimming event of ~4.5mag that lasted over 6.5yr....

We study the evolution of the FU Ori object V960 Mon since its outburst, using available multiwavelength photometric time series over 8yr, complemented by several epochs of...

This paper reports the estimated stellar parameters of 1153 Kepler red giant branch stars determined with asteroseismic modeling. We use radial-mode oscillation frequencies,...

Brown dwarf spectra offer vital testbeds for our understanding of the chemical and physical processes that sculpt substellar atmospheres. Recently, atmospheric retrieval...

We present a new high-precision, JWST-based, strong-lensing model for the galaxy cluster Abell 2744 at z=0.3072. By combining the deep, high-resolution JWST imaging from the...

Young planets (<1Gyr) are helpful for studying the physical processes occurring at the early stage of planet evolution. TOI-251 b is a recently discovered sub-Neptune...

We present multiwavelength characterization of 65 high-mass X-ray binary (HMXB) candidates in M33. We use the Chandra ACIS survey of M33 (ChASeM33) catalog to select hard X-ray...

Low-mass stars and substellar objects are essential in tracing the initial mass function (IMF). We study the nearby young {sigma} Orionis cluster (d~408pc, age~1.8Myr) using...

We present a low-dispersion period-luminosity relation (PL) based on 154 Cepheids in Messier 33 (M33) with Hubble Space Telescope (HST) photometry from the PHATTER survey. Using...

The most reliable single-epoch supermassive black hole mass (MBH) estimates in quasars are obtained by using the velocity widths of low-ionization emission lines, typically the...

Quasars at z>~1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, CIV{lambda}1549, shows blueshifts up to...

The stellar companion to the weak-line T Tauri star DI Tau A was first discovered by the lunar occultation technique in 1989 and was subsequently confirmed by a speckle imaging...

We present a detailed multiwavelength study of star formation in the dwarf galaxy NGC 4395, which hosts an active galactic nucleus (AGN). From our observations with the...

We present a first sample of 117 [OIII]{lambda}{lambda}4960,5008 -selected star-forming galaxies at 5.33

We have conducted photometric and spectroscopic observations of the peculiar Type Ia supernova (SN Ia) 2016ije that was discovered through the Tsinghua-NAOC Transient Survey....

We investigate the angular momentum of mono-abundance populations (MAPs) of the Milky Way thick disk by using a sample of 26,076 giant stars taken from APOGEE Data Release (DR)...

We present near-infrared (NIR) and optical observations of the Type Ic supernova (SN Ic) SN 2021krf obtained between days 13 and 259 at several ground-based telescopes. The NIR...

In the context of a project aimed at characterizing the properties of star clusters in the Galactic bulge, here we present the determination of the internal kinematics and...

We investigate the star formation main sequence (MS; SFR-M*) down to 10^8-9^M_{sun} using a sample of 34061 newly discovered ultrafaint (27mag<~i<~30mag) galaxies at...