Search Publications
Missions
Journals
Publication Years
The INTEGRAL view on black hole X-ray binaries
Rodriguez, J.; Wilms, J.; Motta, S. E. +11 more
INTEGRAL is an ESA mission in fundamental astrophysics that was launched in October 2002. It has been in orbit for over 18 years, during which it has been observing the high-energy sky with a set of instruments specifically designed to probe the emission from hard X-ray and soft γ-ray sources. This paper is devoted to the subject of black hole bin…
J-PLUS: The star formation main sequence and rate density at d ≲ 75 Mpc
Hernández-Monteagudo, C.; Galbany, L.; Hernán-Caballero, A. +20 more
Aims: Our goal is to estimate the star formation main sequence (SFMS) and the star formation rate density (SFRD) at z ≤ 0.017 (d ≲ 75 Mpc) using the Javalambre Photometric Local Universe Survey (J-PLUS) first data release, that probes 897.4 deg2 with twelve optical bands.
Methods: We extract the Hα emission flux of 805 local g…
On the Issue of the Origin of Type II Solar Radio Bursts
Chernov, Gennady; Fomichev, Valery
Type II solar radio bursts are among the most powerful events in the solar radio emission in the meter wavelength range. It is generally accepted that the agents generating type II radio bursts are magnetohydrodynamic shock waves. But the relationship between the shock waves and the other manifestations of the large-scale disturbances in the solar…
Revisiting the Fundamental Parameters of 49 New Star Clusters in Gaia DR2
Li, Zhongmu; Chen, Jing; Deng, Yangyang
Reliable fundamental parameters of star clusters such as distance modulus, metallicity, age, extinction, and binary fraction are of key importance for astrophysical studies. Although a lot of new star clusters were identified from the data of, e.g., Gaia Data Release 2 (Gaia DR2), the fundamental parameters of many clusters were not determined rel…
Deeply Buried Nuclei in the Infrared-luminous Galaxies NGC 4418 and Arp 220. I. ALMA Observations at λ = 1.4-0.4 mm and Continuum Analysis
Wilner, David J.; Aalto, Susanne; Martín, Sergio +4 more
We observed with Atacama Large Millimeter/submillimeter Array three deeply buried nuclei in two galaxies, NGC 4418 and Arp 220, at ~0.″2 resolution over a total bandwidth of 67 GHz in f rest = 215-697 GHz. Here we (1) introduce our program, (2) describe our data reduction method for wide-band, high-resolution imaging spectroscopy, (3) a…
ALMA imaging of the M-dwarf Fomalhaut C's debris disc
Matthews, Brenda C.; Duchêne, Gaspard; Kalas, Paul +9 more
Fomalhaut C (LP 876-10) is a low mass M4V star in the intriguing Fomalhaut triple system and, like Fomalhaut A, possesses a debris disc. It is one of very few nearby M-dwarfs known to host a debris disc and of these has by far the lowest stellar mass. We present new resolved observations of the debris disc around Fomalhaut C with the Atacama Large…
The formation of planetary systems with SPICA
Waters, L. B. F. M.; Kamp, I.; Wolf, S. +37 more
In this era of spatially resolved observations of planet-forming disks with Atacama Large Millimeter Array (ALMA) and large ground-based telescopes such as the Very Large Telescope (VLT), Keck, and Subaru, we still lack statistically relevant information on the quantity and composition of the material that is building the planets, such as the tota…
Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS. II. Discovery of two new GW Vir stars: TIC 333432673 and TIC 095332541
Werner, K.; Kepler, S. O.; Althaus, L. G. +8 more
Context. The Transiting Exoplanet Survey Satellite (TESS) mission is revolutionizing the blossoming area of asteroseismology, particularly of pulsating white dwarfs and pre-white dwarfs, thus continuing the impulse of its predecessor, the Kepler mission.
Aims: In this paper, we present the observations from the extended TESS mission in both 1…
Magnetohydrostatic Equilibrium Structure and Mass of Polytropic Filamentary Cloud Threaded by Lateral Magnetic Field
Tomisaka, Kohji; Kashiwagi, Raiga
Filamentary structures are recognized as a fundamental component of interstellar molecular clouds in observations made by the Herschel satellite. These filaments, especially massive filaments, often extend in a direction perpendicular to the interstellar magnetic field. Furthermore, the filaments sometimes have an apparently negative temperature g…
Multiwavelength Characterization of the High-mass X-Ray Binary Population of M31
Williams, Benjamin F.; Eracleous, Michael; Sasaki, Manami +7 more
We present our analysis of high-quality high-mass X-ray binary (HMXB) candidates in M31 selected from point-source optical counterpart candidates from the Chandra-PHAT survey catalog. We fit the spectral energy distributions of optical counterpart candidates using the Bayesian Extinction and Stellar Tool. We used the best-fit luminosity, effective…