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Chandra X-ray Observatory Data Archive
The Chandra X-ray Observatory is the U.S. follow-on to the Einstein Observatory. Chandra was formerly known as AXAF, the Advanced X-ray Astrophysics Facility, but renamed by... -
Chandra X-ray Observatory Data Archive
The Chandra X-ray Observatory is the U.S. follow-on to the Einstein Observatory. Chandra was formerly known as AXAF, the Advanced X-ray Astrophysics Facility, but renamed by... -
Chandra Source Catalog Release 2
The Chandra X-ray Observatory is the U.S. follow-on to the Einstein Observatory and one of NASA"s Great Observatories. Chandra was formerly known as AXAF, the Advanced X-ray... -
Tull RVels, rotation periods and Inclinations
The orientation between a star's spin axis and a planet's orbital plane provides valuable information about the system's formation and dynamical history. For non-transiting... -
Spectroscopic study of Ba and CEMP-s stars
We have performed detailed high-resolution spectroscopic analysis on seven metal-poor stars (BD+75348, BD+093019, HD238020, HE0319-0215, HE0507-1653, HE0930-0018, HE1023-1504)... -
Gaia18cjb LT, LBT, NTT and GTC spectra
Gaia18cjb is one of the Gaia-alerted eruptive young star candidates which has been experiencing a slow and strong brightening during the last 13 years, similar to some FU... -
Giant Outer Transiting Exoplanet Mass survey. IV.
Discovering and characterizing exoplanets at the outer edge of the transit method's sensitivity has proven challenging owing to geometric biases and the practical difficulties... -
Giant Outer Transiting Exoplanet Mass Survey. III.
Large-scale exoplanet surveys like the Transiting Exoplanet Survey Satellite (TESS) mission are powerful tools for discovering large numbers of exoplanet candidates.... -
Spectral class. of dusty massive stars
Episodic mass-loss events such as giant eruptions in luminous blue variables or pre-supernova eruptions in red supergiants drastically alter the evolutionary path of a massive... -
0.7um band parameters primitive asteroids
In the context of charge-coupled devices (CCDs), the ultraviolet (UV) region has mostly remained unexplored after the 1990s. Gaia DR3 offers the community a unique opportunity... -
Spectra of 3 PN with [WC] central star
We present spectroscopy of three hydrogen-deficient central stars of faint planetary nebulae, with effective temperatures (Teff) in excess of 100000K. The nucleus of RaMul 2 is... -
Cassini VIMS
The Visual and Infrared Mapping Spectrometer (VIMS) instrument onboard the Cassini spacecraft observed the system of Saturn, acquiring spectral cubes in the range 0.4-5.2... -
He-rich hot subdwarf stars from LAMOST and Gaia DR3
We conducted an analysis of the abundances of He, C, and N in 210 He-rich hot subdwarfs observed within both the Gaia Data Release 3 (DR3) and LAMOST DR7 data sets. This... -
Broad emission line of 4FGL blazars
In this work, we obtained a sample of 979 Fermi blazars with broad emission lines, including 701 objects collected from published works and 278 objects developed in this work.... -
Architectures of S* Transiting Planets in Binaries.I.
The effect of stellar multiplicity on planetary architecture and orbital dynamics provides an important context for exoplanet demographics. We present a volume-limited catalog... -
TOI-1994 radial velocities with MINERVA & CHIRON
We present the discovery of TOI-1994b, a low-mass brown dwarf transiting a hot subgiant star on a moderately eccentric orbit. TOI-1994 has an effective temperature of... -
RGs Chromospheric indices from LAMOST spect.
Previous studies have found that red giants (RGs) in close binary systems undergoing spin-orbit resonance exhibit an enhanced level of magnetic activity with respect to single... -
Gaia-ESO Survey: members of 32 open clusters
The Gaia-ESO Survey (GES) observed many open clusters as part of its programme to spectroscopically characterize the various Milky Way populations. GES spectroscopy and Gaia... -
Digitized First Byurakan Survey (DFBS) Extracted Spectra
This table contains basic metadata as well as the spectra from the Digital First Byurakan Survey (DFBS). -
Digitized First Byurakan Survey (DFBS) Spectra Query Service
The First Byurakan Survey (FBS) is the largest and the first systematic objective prism survey of the extragalactic sky. It covers 17,000 sq.deg. in the Northern sky together...
