101 citations · 472 across the 20 of their papers we have counts for
20 papers
VELOcities of CEpheids (VELOCE) I. High-precision radial velocities of Cepheids
Richard I. Anderson, Giordano Viviani, Shreeya S. Shetye +27
This first VELOCE data release comprises 18,225 high-precision RV measurements of 258 bona fide classical Cepheids on both hemispheres collected mainly between 2010 and 2022, along…
Discovery of an optical cocoon tail behind the runaway HD 185806
Z. T. Spetsieri, P. Boumis, A. Chiotellis +6
Studies on the circumstellar structures around evolved stars provide vital information on the evolution of the parent star and the properties of the local interstellar medium. In t…
Evolved Massive Stars at Low-metallicity IV. Using 1.6 m "H-bump" to identify red supergiant stars: a case study of NGC 6822
Ming Yang, Alceste Z. Bonanos, Biwei Jiang +9
We present a case study of using a novel method to identify red supergiant (RSG) candidates in NGC 6822, based on their 1.6 m "H-bump". We collected 32 bands of photometric data…
Evolved Massive Stars at Low-metallicity III. A Source Catalog for the Large Magellanic Cloud
Ming Yang, Alceste Z. Bonanos, Biwei Jiang +9
We present a clean, magnitude-limited (IRAC1 or WISE115.0 mag) multiwavelength source catalog for the LMC. The catalog was built upon crossmatching () and deblending ($3…
"Ears" formation in Supernova Remnants: Overhearing an interaction history with bipolar circumstellar structures
A. Chiotellis, P. Boumis, Z. T. Spetsieri
A characteristic feature that is frequently met in nearby supernova remnants (SNRs) is the existence of two antisymmetric, local protrusions that are projected as two "ears" in the…
First systematic high-precision survey of bright supernovae I. Methodology for identifying early bumps
E. Paraskeva, A. Z. Bonanos, A. Liakos +2
Rapid variability before and near the maximum brightness of supernovae has the potential to provide a better understanding of nearly every aspect of supernovae, from the physics of…
Evolved Massive Stars at Low-metallicity II. Red Supergiant Stars in the Small Magellanic Cloud
Ming Yang, Alceste Z. Bonanos, Bi-Wei Jiang +9
We present the most comprehensive RSG sample for the SMC up to now, including 1,239 RSG candidates. The initial sample is derived based on a source catalog for the SMC with conserv…
The Interaction of Type Ia Supernovae with Planetary Nebulae: the Case of Kepler's Supernova Remnant
A. Chiotellis, P. Boumis, Z. T. Spetsieri
One of the key methods for determining the unknown nature of Type Ia supernovae (SNe Ia) is the search for traces of interaction between the SN ejecta and the circumstellar structu…
The Hubble Catalog of Variables (HCV)
A. Z. Bonanos, M. Yang, K. V. Sokolovsky +33
The Hubble Space Telescope (HST) has obtained multi-epoch observations providing the opportunity for a comprehensive variability search aiming to uncover new variables. We have the…
The HST Key Project galaxies NGC 1326A, NGC 1425 and NGC 4548: New variable stars and massive star population
Z. T. Spetsieri, A. Z. Bonanos, M. Yang +2
Studies on the massive star population in galaxies beyond the Local Group are the key to understand the link between their numbers and modes of star formation in different environm…
Evolved Massive Stars at Low-metallicity I. A Source Catalog for the Small Magellanic Cloud
Ming Yang, Alceste Z. Bonanos, Bi-Wei Jiang +9
We present a clean, magnitude-limited (IRAC1 or WISE1 15.0 mag) multiwavelength source catalog for the SMC with 45,466 targets in total, with the purpose of building an anch…
Robust Identification of Active Galactic Nuclei through HST Optical Variability in GOODS-S: Comparison with the X-ray and mid-IR Selected Samples
E. Pouliasis, I. Georgantopoulos, A. Z. Bonanos +9
Identifying Active Galactic Nuclei (AGNs) through their X-ray emission is efficient, but necessarily biased against X-ray-faint objects. We aim to characterize this bias by compari…
Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye
Łukasz Wyrzykowski, P. Mróz, K. A. Rybicki +182
Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the…
The massive star population of the Virgo Cluster galaxy NGC 4535
Z. T. Spetsieri, A. Z. Bonanos, M. Kourniotis +10
We analyzed the massive star population of the Virgo Cluster galaxy NGC 4535 using archival Hubble Space Telescope Wide Field Planetary Camera 2 images in filters F555W and F814W,…
Red supergiant stars in the Large Magellanic Cloud. II. Infrared properties and mid-infrared variability
Ming Yang, Alceste Z. Bonanos, Bi-Wei Jiang +7
The characteristics of IR properties and MIR variability of RSGs in the LMC are analyzed based on 12 bands of NIR to MIR co-added data from 2MASS, Spitzer and WISE, and 6.6 y…
The Hubble Catalog of Variables (HCV)
K. V. Sokolovsky, A. Z. Bonanos, P. Gavras +22
The Hubble Source Catalog (HSC) combines lists of sources detected on images obtained with the WFPC2, ACS and WFC3 instruments aboard the Hubble Space Telescope (HST) available in…
The Hubble Catalog of Variables
K. Sokolovsky, A. Bonanos, P. Gavras +22
We aim to construct an exceptionally deep (V ~< 27) catalog of variable objects in selected Galactic and extragalactic fields visited multiple times by the Hubble Space Telescope (…
The Hubble Catalog of Variables
P. Gavras, A. Z. Bonanos, I. Bellas-Velidis +14
The Hubble Catalog of Variables (HCV) is a 3 year ESA funded project that aims to develop a set of algorithms to identify variables among the sources included in the Hubble Source…
Comparative performance of selected variability detection techniques in photometric time series
K. V. Sokolovsky, P. Gavras, A. Karampelas +20
Photometric measurements are prone to systematic errors presenting a challenge to low-amplitude variability detection. In search for a general-purpose variability detection techniq…
Red Supergiant Stars in the Large Magellanic Cloud: I. The Period-Luminosity Relation
Ming Yang, B. W. Jiang
From previous samples of Red Supergiants (RSGs) by various groups, 191 objects are assembled to compose a large sample of RSG candidates in LMC. For 189 of them, the identity as a…