Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Garcia-Álvarez, D."'
Autor:
Cooper, W. J., Jones, H. R. A., Smart, R. L., Folkes, S. L., Caballero, J. A., Marocco, F., Ortiz, M. C. Gálvez, Burgasser, A. J., Kirkpatrick, J. D., Sarro, L. M., Burningham, B., Cabrera-Lavers, A., Tremblay, P. E., Reylé, C., Lodieu, N., Zhang, Z. H., Cook, N. J., Faherty, J. F., García-Álvarez, D., Montes, D., Pinfield, D. J., Rajpurohit, A. S., Shi, J.
As part of our comprehensive, ongoing characterisation of the low-mass end of the main sequence in the Solar neighbourhood, we used the OSIRIS instrument at the 10.4 m Gran Telescopio Canarias to acquire low- and mid-resolution (R$\approx$300 and R$\
Externí odkaz:
http://arxiv.org/abs/2409.03706
Autor:
Messina, S., Catanzaro, G., Lanza, A. F., Gandolfi, D., Serrano, M. M., Deeg, H. J., Garcia-Alvarez, D.
RACE-OC (Rotation and ACtivity Evolution in Open Clusters) is a project aimed at characterising the rotational and magnetic activity properties of the late-type members of open clusters, stellar associations, and moving groups of different ages. As p
Externí odkaz:
http://arxiv.org/abs/2408.16328
Autor:
Bobakov, A. V., Kirichenko, A. Yu., Zharikov, S. V., Karpova, A. V., Zyuzin, D. A., Shibanov, Yu. A., Mennickent, R. E., Garcia-Álvarez, D.
Context. Two millisecond pulsars, PSR J1513$-$2550 and PSR J2017$-$1614, with spin periods of about 2.1 and 2.3 ms were recently discovered in the radio and $\gamma$-rays and classified as black widow pulsars in tight binary stellar systems with orbi
Externí odkaz:
http://arxiv.org/abs/2407.17187
Autor:
Marcos, R. de la Fuente, Marcos, C. de la Fuente, de León, J., Alarcon, M. R., Licandro, J., Serra-Ricart, M., García-Álvarez, D., Cabrera-Lavers, A.
Publikováno v:
A&A 681, A4 (2024)
Context. The Arjuna asteroid belt is loosely defined as a diverse group of small asteroids that follow dynamically cold, Earth-like orbits. Most of them are not actively engaged in resonant, co-orbital behavior with Earth. Some of them experience tem
Externí odkaz:
http://arxiv.org/abs/2310.08724
Autor:
Gal-Yam, A., Bruch, R., Schulze, S., Yang, Y., Perley, D. A., Irani, I., Sollerman, J., Kool, E. C., Soumagnac, M. T., Yaron, O., Strotjohann, N. L., Zimmerman, E., Barbarino, C., Kulkarni, S. R., Kasliwal, M. M., De, K., Yao, Y., Fremling, C., Yan, L., Ofek, E. O., Fransson, C., Filippenko, A. V., Zheng, W., Brink, T. G., Copperwheat, C. M., Foley, R. J., Brown, J., Siebert, M., Leloudas, G., Cabrera-Lavers, A. L., Garcia-Alvarez, D., Marante-Barreto, A., Frederick, S., Hung, T., Wheeler, J. C., Vinko, J., Thomas, B. P., Graham, M. J., Duev, D. A., Drake, A. J., Dekany, R., Bellm, E. C., Rusholme, B., Shupe, D. L., Andreoni, I., Sharma, Y., Riddle, R., van Roestel, J., Knezevic, N.
The final explosive fate of massive stars, and the nature of the compact remnants they leave behind (black holes and neutron stars), are major open questions in astrophysics. Many massive stars are stripped of their outer hydrogen envelopes as they e
Externí odkaz:
http://arxiv.org/abs/2111.12435
Autor:
Dhillon, V. S., Bezawada, N., Black, M., Dixon, S. D., Gamble, T., Gao, X., Henry, D. M., Kerry, P., Littlefair, S. P., Lunney, D. W., Marsh, T. R., Miller, C., Parsons, S. G., Ashley, R. P., Breedt, E., Brown, A., Dyer, M. J., Green, M. J., Pelisoli, I., Sahman, D. I., Wild, J., Ives, D. J., Mehrgan, L., Stegmeier, J., Dubbeldam, C. M., Morris, T. J., Osborn, J., Wilson, R. W., Casares, J., Muñoz-Darias, T., Pallé, E., Rodríguez-Gil, P., Shahbaz, T., Torres, M. A. P., Postigo, A. de Ugarte, Cabrera-Lavers, A., Corradi, R. L. M., Domínguez, R. D., García-Alvarez, D.
HiPERCAM is a portable, quintuple-beam optical imager that saw first light on the 10.4-m Gran Telescopio Canarias (GTC) in 2018. The instrument uses re-imaging optics and 4 dichroic beamsplitters to record $u_s g_s r_s i_s z_s$ ($320-1060$ nm) images
Externí odkaz:
http://arxiv.org/abs/2107.10124
Autor:
Caballero, J. A., de Burgos, A., Alonso-Floriano, F. J., Cabrera-Lavers, A., Garcia-Alvarez, D., Montes, D.
Publikováno v:
A&A 629, A114 (2019)
Context. Only a few open clusters are as important for the study of stellar and substellar objects, and their formation and evolution, as the young sigma Orionis cluster. However, a complete spectroscopic characterisation of its whole stellar populat
Externí odkaz:
http://arxiv.org/abs/1908.10340
Publikováno v:
In Engineering Applications of Artificial Intelligence June 2023 122
Autor:
Ábrahám, P., Kóspál, Á., Kun, M., Fehér, O., Zsidi, G., Acosta-Pulido, J. A., Carnerero, M. I., Garcia-Álvarez, D., Moór, A., Cseh, B., Hajdu, G., Hanyecz, O., Kelemen, J., Kriskovics, L., Marton, G., Mező, Gy., Molnár, L., Ordasi, A., Rodriguez-Coira, G., Sárneczky, K., Sódor, Á., Szakáts, R., Szegedi-Elek, E., Szing, A., Farkas-Takács, A., Vida, K., Vinkó, J.
V582 Aur is an FU Ori-type young eruptive star in outburst since $\sim$1985. The eruption is currently in a relatively constant plateau phase, with photometric and spectroscopic variability superimposed. Here we will characterize the progenitor of th
Externí odkaz:
http://arxiv.org/abs/1712.04968
Publikováno v:
A&A 601, A76 (2017)
The evolution of massive stars surviving the red supergiant (RSG) stage remains unexplored due to the rarity of such objects. The yellow hypergiants (YHGs) appear to be the warm counterparts of post-RSG classes located near the Humphreys-Davidson upp
Externí odkaz:
http://arxiv.org/abs/1612.06853