84 citations · 141 across the 10 of their papers we have counts for
10 papers
A search for OB stars in the field of the galactic OB association Bochum 7
Mariela A. Corti, Rosa B. Orellana, Guillermo L. Bosch
AIMS We plan to identify the members of the Bochum7 association by performing simultaneous astrometric and spectrophotometric analyses, and estimate its distance and evolutionary s…
Comparing the asteroseismic properties of pulsating pre-extremely low mass white dwarf and delta Scuti stars
Julieta P. Sanchez Arias, Alejandra D. Romero, Alejandro H. Corsico +5
Pulsating extremely low-mass pre-white dwarf stars (pre-ELMV), with masses between ~0.15 Msun and ~0.30 Msun, constitute a new class of variable stars showing g- and possibly p-mod…
Two new pulsating low-mass pre-white dwarfs or SX Phenix stars?*
M. A. Corti, A. Kanaan, A. H. Córsico +4
Context. The discovery of pulsations in low-mass stars opens an opportunity for probing their interiors and to determine their evolution, by employing the tools of asteroseismology…
A deep and wide-field view at the IC 2944 / 2948 complex in Centaurus
G. Baume, M. J. Rodríguez, M. A. Corti +2
We employed the ESO MPI wide-field camera and obtained deep images in the VIc pass-bands in the region of the IC 2944/2948 complex (l ~ 294; b ~ -1), and complemented them with lit…
Photometric and spectroscopic variations of the Be star HD 112999
M. A. Corti, R. C. Gamen, Y. J. Aidelman +2
Be objects are stars of B spectral type showing lines of the Balmer series in emission. The presence of these lines is attributed to the existence of an extended envelope, disk typ…
An independent limit on the axion mass from the variable white dwarf star R548
Alejandro H. Córsico, Leandro G. Althaus, Alejandra D. Romero +5
Pulsating white dwarfs with hydrogen-rich atmospheres, also known as DAV stars, can be used as astrophysical laboratories to constrain the properties of fundamental particles like…
GS305+04-26:Revisiting the ISM around the CenOB1 stellar association
M. A. Corti, E. M. Arnal, R. B. Orellana
Massive stars deeply modify their surrounding ISM via their high throughput of ionizing photons and their strong stellar winds. In this way they may create large expanding structur…
NGC 3503 and its molecular environment
N. U. Duronea, J. Vasquez, C. E. Cappa +2
We present a study of the molecular gas and interstellar dust distribution in the environs of the HII region NGC 3503 associated with the open cluster Pis 17 with the aim of invest…
A New Feature in the Spectrum of the Superluminous LMC Supergiant HDE 269896
Mariela A. Corti, Nolan R. Walborn, Christopher J. Evans
We have found strong selective emission of the N II 5000A complex in the spectrum of the LMC hypergiant HDE 269896, ON9.7 Ia. Since this object also has anomalously strong He I…
LSS 1135: an O-Type Spectroscopic Binary in the galactic OB association Bochum 7
Mariela Corti, Virpi Niemela, Nidia Morrell
From radial velocities derived from optical spectroscopic observations performed at CTIO, Chile, and CASLEO, Argentina, we have discovered that LSS 1135 is a single--lined O-type b…