809 citations · 28.2k across the 927 of their papers we have counts for
9 papers · 2 filters
On the Use of Field RR Lyrae as Galactic Probes. II. A new S calibration to estimate their metallicity
J. Crestani, M. Fabrizio, V. F. Braga +33
We performed the largest and most homogeneous spectroscopic survey of field RR Lyraes (RRLs). We secured 6,300 high resolution (HR, R35,000) spectra for 143 RRLs (11…
PBjam: A Python package for automating asteroseismology of solar-like oscillators
M. B. Nielsen, G. R. Davies, W. H. Ball +14
Asteroseismology is an exceptional tool for studying stars by using the properties of observed modes of oscillation. So far the process of performing an asteroseismic analysis of a…
A search for variable subdwarf B stars in TESS Full Frame Images -- I. Variable objects in the southern ecliptic hemisphere
S. K. Sahoo, A. S. Baran, S. Sanjayan +1
We report the results of our search for pulsating subdwarf B stars in Full Frame Images, sampled at 30 min cadence and collected during Year 1 of the TESS mission. Year 1 covers mo…
Accretion bursts in magnetized gas-dust protoplanetary disks
Eduard Vorobyov, Sergey Khaibrakhmanov, Shantanu Basu +1
Aims and Methods. Accretion bursts triggered by the magnetorotational instability (MRI) in the innermost disk regions were studied for protoplanetary gas-dust disks formed from pre…
On using dipolar modes to constrain the helium glitch in red-giant stars
G. Dréau, M. S. Cunha, M. Vrard +1
The space-borne missions CoRoT and Kepler have revealed numerous mixed modes in red-giant stars. These modes carry a wealth of information about red-giant cores, but are of limited…
Precise mass measurements for the double neutron star system J1829+2456
Henryk T. Haniewicz, Robert D. Ferdman, Paulo C. C. Freire +4
PSR J1829+2456 is a radio pulsar in a relativistic binary system with another neutron star. It has a rotational period of 41 ms and a mildly eccentric () 28-hr orbit. We…
Current and future development of the photoionization code Cloudy
P. A. M. van Hoof, G. C. Van de Steene, F. Guzmán +3
The gas that is present in the interstellar medium is usually very far removed from (local) thermodynamic equilibrium, and in some cases may also not be in a steady-state equilibri…
Production of Lithium in Primordial Supernovae
Alexander Heger, Stan Woosley
The first generation of stars is quite unique. The absence of metals likely affects their formation, with current models suggesting a much more top-heavy initial mass fraction than…
The evolution of magnetic stars in a single-age population
Pınar Cerrahoğlu, Véronique Petit, Zsolt Keszthelyi +1
Observational and theoretical work has now established that the fossil fields of magnetic massive stars are surviving remnants from an earlier event, or an earlier evolutionary pha…