271 citations · 823 across the 21 of their papers we have counts for
21 papers
The potential broader complex linked to the key Cepheid SV Vul
Daniel Majaess, Ignacio Negueruela, Leonid N. Berdnikov +10
A new distance was established to the Cepheid SV Vul () and its host cluster Alicante 13, and is tied in part to deeper UKIDSS-DR6 photometry and Gaia DR3 observatio…
Sailing to the next safe harbour in our trip to the early Universe: The massive star population of metal-poor galaxies
N. Castro, M. Garcia, A. Herrero +5
Very metal-poor massive stars in the Local Group are our best proxies for the Universe's first stars, making them essential for modeling reionization and early galactic chemical ev…
Why the northern hemisphere needs a 30-40 m telescope and the science at stake: Massive stars in spiral galaxies
J. Maíz Apellániz, S. Simón-Díaz, A. Herrero +5
This document discusses the three main lines expected to dominate massive-star research in the 2040s, namely: (1) The role of metallicity in stellar evolution, especially in determ…
Science Enabled by a 30-Meter-Class Telescope in the Northern Hemisphere: Massive Stars at Low Metallicity
Miriam Garcia, Artemio Herrero, Ignacio Negueruela +11
Massive stars are at the core of our observations of the Universe up to the reionization epoch, both through their intense ionizing fluxes and through the energetic end products th…
NGC 663 as a laboratory for massive star evolution
Amparo Marco, Ignacio Negueruela, Norberto Castro +1
Massive young clusters with rich populations of high-mass stars are ideal laboratories to explore their evolutionary paths. Despite being the most prominent cluster in the Perseus-…
Quantifying the scale of star formation across the Perseus spiral arm using young clusters around Cas OB5
Alexis L. Quintana, Ignacio Negueruela, Sara R. Berlanas
Cas OB5 is an OB association located at a distance of 2.5-3 kpc that intercepts the Perseus spiral arm. It carries a moderate amount of reddening ( 2-3 mag) and contains…
Hot and cool: Characterising the companions of red supergiant stars in binary systems
L. R. Patrick, I. Negueruela
In this article we study the nature of the recently identified populations of hot companions to red supergiant stars (RSGs). To this end, we compile the literature on the most well…
Hunting for red supergiant binaries: UVIT photometry of the SMC
L. R. Patrick, D. Thilker, D. J. Lennon +5
We present UVIT/Astrosat UV photometry of the RSG population of the Small Cloud galaxy (SMC). As RSGs are extremely faint in the far-UV, these observations directly probe potential…
High-resolution spectroscopic study of massive blue and red supergiants in Per OB1
A. de Burgos, S. Simón-Díaz, D. J. Lennon +5
The Perseus OB1 association hosts one of the most populous groupings of blue and red supergiants (Sgs) in the Galaxy. We discuss whether the massive O-type and blue/red Sg stars lo…
A catalog of Galactic multiple systems with a red supergiant and a B star
M. Pantaleoni González, J. Maíz Apellániz, R. H. Barbá +1
Binary systems composed of a red supergiant and a B star are useful probes of stellar evolution. We have searched the literature to create a catalog of 108 Galactic systems of such…
LiLiMaRlin, a Library of Libraries of Massive-Star High-Resolution Spectra with applications to OWN, MONOS, and CollDIBs
J. Maíz Apellániz, E. Trigueros Páez, I. Jiménez Martínez +5
LiLiMaRlin is a library of libraries of massive-star high-resolution optical spectra built by collecting data from [a] our spectroscopic surveys (OWN, IACOB. NoMaDS, and CAFÉ-BEANS…
High-mass stars in Milky Way clusters
Ignacio Negueruela
Young open clusters are our laboratories for studying high-mass star formation and evolution. Unfortunately, the information that they provide is difficult to interpret, and someti…
The young open cluster NGC 7067 using Strömgren photometry
M. Monguió, I. Negueruela, A. Marco +13
NGC 7067 is a young open cluster located in the direction between the first and the second Galactic quadrants and close to the Perseus spiral arm. This makes it useful for studies…
The Galactic O-Star Spectroscopic Survey (GOSSS). III. 142 additional O-type systems
J. Maíz Apellániz, A. Sota, J. I. Arias +9
This is the third installment of GOSSS, a massive spectroscopic survey of Galactic O stars, based on new homogeneous, high signal-to-noise ratio, R~2500 digital observations select…
A coordinated X-ray and Optical Campaign of the Nearest Massive Eclipsing Binary, Orionis Aa: IV. A multiwavelength, non-LTE spectroscopic analysis
T. Shenar, L. Oskinova, W. -R. Hamann +13
Eclipsing systems of massive stars allow one to explore the properties of their components in great detail. We perform a multi-wavelength, non-LTE analysis of the three components…
CAFÉ-BEANS: An exhaustive hunt for high-mass binaries
I. Negueruela, J. Maíz Apellániz, S. Simón-Díaz +11
CAFÉ-BEANS is an on-going survey running on the 2.2 m telescope at Calar Alto. For more than two years, CAFÉ-BEANS has been collecting high-resolution spectra of early-type stars w…
Orbital and physical properties of the Ori Aa,Ab,B triple system
Simón-Díaz, J. A. Caballero, J. Lorenzo +11
We provide a complete characterization of the astrophysical properties of the Ori Aa,Ab,B hierarchical triple system, and an improved set of orbital parameters for the highly e…
MGB and the new Galactic O-Star Spectroscopic Survey spectral classification standard grid
J. Maíz Apellániz, E. J. Alfaro, J. I. Arias +9
In this poster we present three developments related to the Galactic O-Star Spectroscopic Survey (GOSSS). First, we are making public the first version of MGB, an IDL code that all…
New galactic star clusters discovered in the VVV survey. Candidates projected on the inner disk and bulge
J. Borissova, A. -N. Chené, S. Ramírez Alegría +21
VISTA Variables in the Vía Láctea (VVV) is one of six ESO Public Surveys using the 4 meter Visible and Infrared Survey Telescope for Astronomy (VISTA). The VVV survey covers the Mi…
Massive open star clusters using the VVV survey III: A young massive cluster at the far edge of the Galactic bar
S. Ramírez Alegría, J. Borissova, A. N. Chené +14
Context: Young massive clusters are key to map the Milky Way's structure, and near-IR large area sky surveys have contributed strongly to the discovery of new obscured massive stel…
A Be-type star with a black hole companion
J. Casares, I. Negueruela, M. Ribo +4
Stellar-mass black holes have all been discovered through X-ray emission, which arises from the accretion of gas from their binary companions (this gas is either stripped from low-…