Pere Blay

Multi-wavelength study of 1eRASS J085039.9−421151 with eROSITA, NuSTAR, and X-shooter

A. Zainab, A. Avakyan, Victor Doroshenko, P. Thalhammer et autres

The eROSITA instrument on board Spectrum-Roentgen-Gamma (SRG) has completed four scans of the X-ray sky, leading to the detection of almost one million X-ray sources in eRASS1 alone, including multiple new X-ray binary candidates. We report on analysis of the X-ray binary …

de, us, es (code pays fourni par la source)

Multiwavelength study of 1eRASS J085039.9-421151 with eROSITA NuSTAR and X-shooter

A. Zainab, Artur Avakyan, Victor Doroshenko, P. Thalhammer et autres

The eROSITA instrument on board Spectrum-Roentgen-Gamma has completed four scans of the X-ray sky, leading to the detection of almost one million X-ray sources in eRASS1 only, including multiple new X-ray binary candidates. We report on analysis of the X-ray binary 1eRASS …

A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign

K. S. Baliyan, Wenjie Zheng, J. Štrobl, John R. Webb et autres

We analyse the light curve in the R band of the blazar OJ287, gathered during the 2015/2016 observing season. We did a search for quasi-periodic oscillations (QPOs) using several methods over a wide range of timescales. No statistically significant periods were found …

us (code pays fourni par la source)

Photometric classification of quasars from ALHAMBRA survey using random forest

Benjamín Arroquia-Cuadros, Néstor Sánchez, Vicent Gómez, Pere Blay et autres

Context. Given the current era of big data in astronomy, machine-learning-based methods have begun to be applied over recent years to identify or classify objects, such as quasars, galaxies, and stars, from full-sky photometric surveys. Aims. Here we systematically evaluate the performance …

es (code pays fourni par la source)

Photometric classification of QSOs from ALHAMBRA survey using random forest

Benjamin Arroquia-Cuadros, Néstor Sánchez, Vicent Gómez, Pere Blay et autres

Context: Given the current big data era in Astronomy, machine learning based methods have being applied over the last years to identify or classify objects like quasars, galaxies and stars from full sky photometric surveys. Aims: Here we systematically evaluate the performance …

A polarimetric census of Be X-Ray Binaries with FAPOL@NOT

Pere Blay, Pablo Reig

Late O or early B stars showing Balmer lines in emission and infrared excess are classified as Be stars. Both, the emission in Balmer lines and the infrared excess, have their origin in a circumstelar disk-alike decretion structure. Rapid rotation and pulsations …

es, gr (code pays fourni par la source)

A polarimetric census of Be X-Ray Binaries with FAPOL@NOT

Pere Blay, Pablo Reig

Late O or early B stars showing Balmer lines in emission and infrared excess are classified as Be stars. Both, the emission in Balmer lines and the infrared excess, have their origin in a circumstelar disk-alike decretion structure. Rapid rotation and pulsations …

es, gr (code pays fourni par la source)

A polarimetric census of Be X-Ray Binaries with FAPOL@NOT

Pere Blay, Pablo Reig

Late O or early B stars showing Balmer lines in emission and infrared excess are classified as Be stars. Both, the emission in Balmer lines and the infrared excess, have their origin in a circumstelar disk-alike decretion structure. Rapid rotation and pulsations …

es, gr (code pays fourni par la source)

A polarimetric census of Be X-Ray Binaries with FAPOL@NOT

Pere Blay, Pablo Reig

Late O or early B stars showing Balmer lines in emission and infrared excess are classified as Be stars. Both, the emission in Balmer lines and the infrared excess, have their origin in a circumstelar disk-alike decretion structure. Rapid rotation and pulsations …

es, gr (code pays fourni par la source)

Study of the open cluster Alessi-Teutsch 9 (ASCC 10) using multiband photometry and Gaia EDR3

Néstor Sánchez, F. López-Martínez, Sandra Ocando, Pere Blay

There is a growing interest in the automated characterization of open clusters using data from the Gaia mission. This work evidences the importance of choosing an appropriate sampling radius (the radius of the circular region around the cluster used to extract the …

es (code pays fourni par la source)

Study of the open cluster Alessi-Teutsch 9 (ASCC 10) using multiband photometry and Gaia EDR3

Néstor Sánchez, F. López-Martínez, Sandra Ocando, Pere Blay

es (code pays fourni par la source)

Changes in Alcohol Consumption Pattern Based on Gender during COVID-19 Confinement in Spain

Víctor José Villanueva‐Blasco, Verónica Villanueva-Silvestre, Manuel Isorna Folgar, Patricia Motos et autres

(1) The goal of this study was to analyze the prevalence and pattern of alcohol consumption (frequency of consumption, average daily consumption, and risky consumption) before and during confinement due to the coronavirus disease (COVID-19) in the adult population and based on …

es (code pays fourni par la source)