2.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of CambridgeGB680 papers
- Russian Academy of SciencesRU572 papers
- KU LeuvenBE531 papers
- Centre National de la Recherche ScientifiqueFR460 papers
- Max Planck Institute for AstronomyDE316 papers
- Sorbonne UniversitéFR214 papers
- European Southern ObservatoryCL203 papers
- Université Paris CitéFR200 papers
- Instituto de Astrofísica de CanariasES184 papers
- Center for Astrophysics Harvard & SmithsonianUS181 papers
- Leiden UniversityNL162 papers
- Heidelberg UniversityDE161 papers
53 papers · 1 filter
The orbit and dynamical evolution of the Chelyabinsk object
Vacheslav V. Emel'yanenko, Sergey A. Naroenkov, Peter Jenniskens +1
The orbit of the Chelyabinsk object is calculated, applying the least-squares method directly to astrometric positions. The dynamical evolution of this object in the past is studie…
Parameters of type IIP SN 2012A and clumpiness effects
V. P. Utrobin, N. N. Chugai
The explosion energy and the ejecta mass of a type IIP supernova (SN IIP) derived from hydrodynamic simulations are principal parameters of the explosion theory. However, the numbe…
Cosmic Evolution of Black Holes and Spheroids. V. The Relation Between Black Hole Mass and Host Galaxy Luminosity for a Sample of 79 Active Galaxies
Daeseong Park, Jong-Hak Woo, Vardha N. Bennert +3
We investigate the cosmic evolution of the black hole (BH) mass -- bulge luminosity relation using a sample of 52 active galaxies at and in the BH mass…
Variations on the theme of Michel Henon's Isochrone
D. Lynden-Bell
A variation of Newton's method of mapping Kepler's orbits into orbits in the simple harmonic oscillator is shown to give Henon's Isochrone. The statistical mechanics of a micro-can…
GSC 4560--02157: a New Long-period Eclipsing Cataclysmic Variable Star
A. V. Khruslov, A. V. Kusakin, E. A. Barsukova +3
We study the newly discovered variable star GSC 4560--02157. CCD photometry was performed in 2013--2014, and a spectrum was obtained with the 6-m telescope in June, 2014. GSC 4560-…
Bisymmetric normal modes in soft-centred and realistic galactic discs
Evgeny Polyachenko, Andreas Just
We test methods for the determination of unstable modes in stellar discs: a point collocation scheme in the action sub-space, a scheme based on expansion of the density and potenti…
Tracing early stellar evolution with asteroseismology: pre-main sequence stars in NGC 2264
Konstanze Zwintz, Luca Fossati, Tatiana Ryabchikova +2
Asteroseismology has been proven to be a successful tool to unravel details of the internal structure for different types of stars in various stages of their main sequence and post…
Structure and kinematics of the polar ring galaxies: new observations and estimation of the dark halo shape
A. Moiseev, S. Khoperskov, A. Khoperskov +4
The polar ring galaxies (PRGs) represent an interesting type of peculiar systems in which the outer matter is rotating in the plane which is roughly perpendicular to the disk of th…
Evolutionary status of the active star PZ Mon
Yu. V. Pakhomov, N. N. Chugai, N. I. Bondar +2
We use original spectra and available photometric data to recover parameters of the stellar atmosphere of PZ Mon, formerly referred as an active red dwarf. The derived effective te…
Three-dimensional magnetic and abundance mapping of the cool Ap star HD 24712 II. Two-dimensional Magnetic Doppler Imaging in all four Stokes parameters
N. Rusomarov, O. Kochukhov, T. Ryabchikova +1
Aims: We present a magnetic Doppler imaging study from all Stokes parameters of the cool, chemically peculiar star HD 24712. This is the very first such analysis performed at a res…
Tracing the Cosmic Metal Evolution in the Low-Redshift Intergalactic Medium
J. Michael Shull, Charles. W. Danforth, Evan M. Tilton
Using the Cosmic Origins Spectrograph aboard the Hubble Space Telescope, we measured the abundances of six ions (C III, C IV, Si III, Si IV, N V, O VI) in the low-redshift (z < 0.4…
The Best and Brightest Metal-Poor Stars
Kevin C. Schlaufman, Andrew R. Casey
The chemical abundances of large samples of extremely metal-poor (EMP) stars can be used to investigate metal-free stellar populations, supernovae, and nucleosynthesis as well as t…
He-Accreting WDs: accretion regimes and final outcomes
L. Piersanti, A. Tornambé, L. R. Yungelson
The behaviour of carbon-oxygen white dwarfs (WDs) subject to direct helium accretion is extensively studied. We aim to analyze the thermal response of the accreting WD to mass depo…
Assessment of evolutionary status of eclipsing binaries using light-curve parameters and spectral classification
Ekaterina Avvakumova, Oleg Malkov
We have developed a procedure for the classification of eclipsing binaries from their light-curve parameters and spectral type. The procedure was tested on more than 1000 systems w…
On Asymmetric Distributions of Satellite Galaxies
A. Bowden, N. W. Evans, V. Belokurov
We demonstrate that the asymmetric distribution of M31 satellites cannot be produced by tides from the Milky Way as such effects are too weak. However, loosely bound associations a…
Heating efficiency in hydrogen-dominated upper atmospheres
Valery I. Shematovich, Dmitry E. Ionov, Helmut Lammer
Context. The heating efficiency is defined as the ratio of the net local gas-heating rate to the rate of stellar radiative energy absorption. It plays an important role in thermal-…
Water in star-forming regions with Herschel (WISH) V. The physical conditions in low-mass protostellar outflows revealed by multi-transition water observations
J. C. Mottram, L. E. Kristensen, E. F. van Dishoeck +17
Context: Outflows are an important part of the star formation process as both the result of ongoing active accretion and one of the main sources of mechanical feedback on small sca…
Towards Chemical Constraints on Hot Jupiter Migration
Nikku Madhusudhan, Mustafa A. Amin, Grant M. Kennedy
The origin of hot Jupiters -- gas giant exoplanets orbiting very close to their host stars -- is a long-standing puzzle. Planet formation theories suggest that such planets are unl…
Population Studies. XIII. A New Analysis of the Bidelman-MacConnell "Weak-Metal" Stars - Confirmation of Metal-Poor Stars in the Thick Disk of the Galaxy
Timothy C. Beers, John E. Norris, Vinicius M. Placco +4
A new set of very high signal-to-noise (S/N > 100/1), medium-resolution (R~3000) optical spectra have been obtained for 302 of the candidate "weak-metal" stars selected by Bidelman…
The Debris Disk of Solar Analogue Ceti: Herschel Observations and Dynamical Simulations of the Proposed Multiplanet System
S. M. Lawler, J. Di Francesco, G. M. Kennedy +16
Ceti is a nearby, mature G-type star very similar to our Sun, with a massive Kuiper Belt analogue (Greaves et al. 2004) and possible multiplanet system (Tuomi et al. 2013) that…
Optical and infrared emission of H II complexes as a clue to the PAH life cycle
M. S. Khramtsova, D. S. Wiebe, T. A. Lozinskaya +1
We present an analysis of optical spectroscopy and infrared aperture photometry of more than 100 H II complexes in nine galaxies. Spectra obtained with the 6-m telescope of SAO RAS…
The B Fields in OB Stars (BOB) Survey
T. Morel, N. Castro, L. Fossati +29
The B fields in OB stars (BOB) survey is an ESO large programme collecting spectropolarimetric observations for a large number of early-type stars in order to study the occurrence…
Eyes in the sky: Interactions between AGB winds and the interstellar magnetic field
A. J. van Marle, N. L. J. Cox, L. Decin
We aim to examine the role of the interstellar magnetic field in shaping the extended morphologies of slow dusty winds of Asymptotic Giant-branch (AGB) stars in an effort to pin-po…
Massive Star Asteroseismology in Action
Conny Aerts
After highlighting the principle and power of asteroseismology for stellar physics, we briefly emphasize some recent progress in this research for various types of stars. We give a…