Zobrazeno 1 - 10
of 6 371
pro vyhledávání: '"Coelho, A. R."'
Autor:
del Pino, A., López-Sanjuan, C., Hernán-Caballero, A., Domínguez-Sánchez, H., von Marttens, R., Fernández-Ontiveros, J. A., Coelho, P. R. T., Lumbreras-Calle, A., Vega-Ferrero, J., Jimenez-Esteban, F., Cruz, P., Marra, V., Quartin, M., Galarza, C. A., Angulo, R. E., Cenarro, A. J., Cristóbal-Hornillos, D., Dupke, R. A., Ederoclite, A., Hernández-Monteagudo, C., Marín-Franch, A., Moles, M., Sodré Jr., L., Varela, J., Ramió, H. Vázquez
With its 12 optical filters, the Javalambre-Photometric Local Universe Survey (J-PLUS) provides an unprecedented multicolor view of the local Universe. The third data release (DR3) covers 3,192 deg$^2$ and contains 47.4 million objects. However, the
Externí odkaz:
http://arxiv.org/abs/2404.16567
Autor:
Branco, Vinicius, Coelho, Paula R. T., Lançon, Ariane, Martins, Lucimara P., Prugniel, Philippe
Most Galactic Globular Clusters (GCs) harbour multiple populations of stars (MPs), composed of at least two generations: the first characterized by a "standard" $\alpha$-enhanced metal mixture, as observed in field halo stars of the Milky Way, and th
Externí odkaz:
http://arxiv.org/abs/2404.15468
Autor:
Coelho, H. R., Miglio, A., Morel, T., Lagarde, N., Bossini, D., Chaplin, W. J., Degl'Innocenti, S., Dell'Omodarme, M., Garcia, R. A., Handberg, R., Hekker, S., Huber, D., Lund, M. N., Mathur, S., Moroni, P. G. Prada, Mosser, B., Serenelli, A., Rainer, M., Nascimento Jr., J. D. do, Poretti, E., Mathias, P., Valle, G., Tio, P. Dal, Duarte, T.
Photometric time series gathered by space telescopes such as CoRoT and Kepler allow to detect solar-like oscillations in red-giant stars and to measure their global seismic constraints, which can be used to infer global stellar properties (e.g. masse
Externí odkaz:
http://arxiv.org/abs/2312.11233
Publikováno v:
Bull. Soc. R. Sci. Liege, 2023, 92(2), 1 - 4
We present an update of the grid of detailed atmosphere models and homogeneous synthetic spectra for hot, high-gravity subdwarf stars. High-resolution spectra and synthetic photometry were calculated in the wavelength range 1,000 \r{A} - 10,000 \r{A}
Externí odkaz:
http://arxiv.org/abs/2307.08362
Autor:
López-Sanjuan, C., Ramió, H. Vázquez, Xiao, K., Yuan, H., Carrasco, J. M., Varela, J., Cristóbal-Hornillos, D., Tremblay, P. -E., Ederoclite, A., Marín-Franch, A., Cenarro, A. J., Coelho, P. R. T., Daflon, S., del Pino, A., Sánchez, H. Domínguez, Fernández-Ontiveros, J. A., Hernán-Caballero, A., Jiménez-Esteban, F. M., Alcaniz, J., Angulo, R. E., Dupke, R. A., Hernández-Monteagudo, C., Moles, M., Sodré Jr, L.
We present the photometric calibration of the twelve optical passbands for the Javalambre Photometric Local Universe Survey (J-PLUS) third data release (DR3), comprising 1642 pointings of two square degrees each. We selected nearly 1.5 million main s
Externí odkaz:
http://arxiv.org/abs/2301.12395
Autor:
Wang, Cunshi, Bai, Yu, Yuan, Haibo, Liu, Jifeng, Fernández-Ontiveros, J. A., Coelho, Paula R. T., Jiménez-Esteban, F., Galarza, Carlos Andrés, Angulo, R. E., Cenarro, A. J., Cristóbal-Hornillos, D., Dupke, R. A., Ederoclite, A., Hernández-Monteagudo, C., López-Sanjuan, C., Marín-Franch, A., Moles, M., Sodré Jr., L., Ramió, H. Vázquez, Varela, J.
Publikováno v:
A&A 664, A38 (2022)
Context. Stellar parameters are among the most important characteristics in studies of stars, which are based on atmosphere models in traditional methods. However, time cost and brightness limits restrain the efficiency of spectral observations. The
Externí odkaz:
http://arxiv.org/abs/2205.02595
Publikováno v:
A&A 661, A105 (2022)
The high luminosity displayed by an active galactic nucleus (AGN) requires that gas be transported to the centre of the galaxy by some mechanism. Bar-driven processes are often pointed out in this context and a number of studies have addressed the ba
Externí odkaz:
http://arxiv.org/abs/2203.07794
Autor:
Hartmann, Eduardo A., Bonatto, Charles J., Chies-Santos, Ana L., Alonso-García, Javier, Bastian, Nate, Overzier, Roderik, Schoenell, William, Coelho, Paula R. T., Branco, Vinicius, Kanaan, Antonio, de Oliveira, Claudia Mendes, Ribeiro, Tiago
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 2022; stac1411
The presence of Multiple Stellar Populations (MSPs) in Galactic Globular Clusters (GCs) is a poorly understood phenomenon. By probing different spectral ranges that are affected by different absorption lines using the multi-band photometric survey S-
Externí odkaz:
http://arxiv.org/abs/2202.11449
Autor:
Steiner, J. E., Menezes, R. B., Ricci, T. V., da Silva, Patrícia, Fernandes, R. Cid, Asari, N. Vale, Carvalho, M. S., May, D., Coelho, Paula R. T., de Amorim, A. L.
Publikováno v:
MNRAS, 510, 5780 (2022)
We present the Deep Integral Field Spectrograph View of Nuclei of Galaxies (DIVING$^{3D}$) survey, a seeing-limited optical 3D spectroscopy study of the central regions of all 170 galaxies in the Southern hemisphere with B < 12.0 and |b| > 15 degrees
Externí odkaz:
http://arxiv.org/abs/2202.00186
Autor:
Spring, E. F., Birkby, J. L., Pino, L., Alonso, R., Hoyer, S., Young, M. E., Coelho, P. R. T., Nespral, D., López-Morales, M.
Publikováno v:
A&A 659, A121 (2022)
The extreme contrast ratios between stars and their planets at optical wavelengths make it challenging to isolate the light reflected by exoplanet atmospheres. Yet, these reflective properties reveal key processes occurring in the atmospheres, and th
Externí odkaz:
http://arxiv.org/abs/2201.03600