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Optical Spectroscopy in the CDFS
These spectra are optical follow-up observations of the X-ray sources detected in the 942 ks exposure of the Chandra Deep Field-South (CDFS) using FORS. -
SN 2017egm spectroscopic & photometric obs.
When discovered, SN 2017egm was the closest (redshift z=0.03) hydrogen-poor superluminous supernova (SLSN-I) and a rare case that exploded in a massive and metal-rich galaxy.... -
Swift Master Catalog
This table records high-level information for each Swift observation and provides access to the data archive. Each record is associated with a single observation that contains... -
Chandra X-ray sources in NGC 3532 with Gaia & WISE
Open clusters are thought to be the birthplace of most stars in the galaxy. Thus, they are excellent laboratories for investigating stellar evolution, and X-ray properties of... -
Flaring stars and brown dwarfs radio emission
The vicinities of intermediate-to-late type dwarf stars are considered as an adequate terrain to host planets suitable for life to form. However, they are oftentimes showing... -
Classification results from CatBoost & SPE in 4XMM-DR13
Classifying and summarizing large data sets from different sky survey projects is essential for various subsequent scientific research. By combining data from 4XMM-DR13, Sloan... -
Galactic centre X-ray reflection map
We investigate the X-ray emission from the Galactic Centre (GC) region, focusing on the 6.4keV fluorescent line of neutral or weakly ionised iron, which is commonly attributed... -
griz light curves of Mrk 335
We present the first results from a 100-day Swift, NICER, and ground-based X-ray-UV-optical reverberation mapping campaign of the Narrow-line Seyfert 1 Mrk 335, when it was in... -
eROSITA, XMM, Swift and ROSAT cataclysmic variables
The cataclysmic variable (CV) is a binary system composed of a white-dwarf (WD) primary and a low-mass main-sequence star. The accretion onto the WD surface causes an X-ray... -
Probing the dynamical of Abell S1101
The galaxy cluster Abell S1101 (S1101 hereafter) deviates significantly from the X-ray luminosity versus velocity dispersion relation (L-sigma) of galaxy clusters in our... -
RXC J2014.8-2430 fits images
We present a broad, multi-wavelength study of RXC J2014.8-2430, the most extreme cool-core cluster in the Representative XMM-Newton Cluster Structure Survey (REXCESS), using... -
Classification of RASS optical counterparts
Previous work (Rutledge et al., 2000ApJS..131..335R) statistically identified 5492 optical counterparts, with >~90% confidence, from among the ~18000 X-ray sources appearing... -
RX J0503.9-2854 spectral energy distribution
In the line-of-sight toward the DO-type white dwarf RX J0503.9-2854, the density of the interstellar medium (ISM) is very low, and thus the contamination of the stellar spectrum... -
Flares and rotation of M dwarfs
More than 4000 exoplanets have been discovered to date, providing the search for a place capable of hosting life with a large number of targets. With the Transiting Exoplanet... -
J1030+0524 field spectral catalog
The 500ks Chandra ACIS-I observation of the field around the z=6.31 quasar SDSS J1030+0524 is currently the fifth deepest extragalactic X-ray survey. The rich multi-band... -
Nuclear properties of highly accreting AGNs
Our understanding of highly accreting AGNs is hampered by the lack of a complete systematic investigation in terms of their main spectral and variability properties, and by the... -
Hard X-ray emission from white dwarfs
Inspired by the hard X-ray emission from WD 2226-210, the central star of the Helix Nebula, we have made a systematic search for similar sources by correlating the white dwarf... -
AGN from RASS and SDSS DR5
We describe further results of a program aimed at yielding ~104 fully characterized optical identifications of ROSAT X-ray sources. Our program employs X-ray data from the ROSAT... -
Orbits of four triple stars
Each of the nearby triple systems HIP 7601, 13498, 23824, and 113597 (HD 10800, 18198, 35877, 217379) consist of solar-type dwarfs with comparable masses, where all three... -
The BAX Database
We present BAX, Base de Donnees Amas de Galaxies X (http://bax.ast.obs-mip.fr), a multi-wavelength database dedicated to X-ray clusters and groups of galaxies allowing detailed...