GRANDMA and HXMT Observations of GRB 221009A -- the Standard-Luminosity Afterglow of a Hyper-Luminous Gamma-Ray Burst

Autor: Kann, D. A., Agayeva, S., Aivazyan, V., Alishov, S., Andrade, C. M., Antier, S., Baransky, A., Bendjoya, P., Benkhaldoun, Z., Beradze, S., Berezin, D., Boër, M., Broens, E., Brunier, S., Bulla, M., Burkhonov, O., Burns, E., Chen, Y., Chen, Y. P., Conti, M., Coughlin, M. W., Cui, W. W., Daigne, F., Delaveau, B., Devillepoix, H. A. R., Dietrich, T., Dornic, D., Dubois, F., Ducoin, J. -G., Durand, E., Duverne, P. -A., Eggenstein, H. -B., Ehgamberdiev, S., Fouad, A., Freeberg, M., Froebrich, D., Ge, M. Y., Gervasoni, S., Godunova, V., Gokuldass, P., Gurbanov, E., Han, D. W., Hasanov, E., Hello, P., Hussenot-Desenonges, T., Inasaridze, R., Iskandar, A., Ismailov, N., Janati, A., Laz, T. Jegou du, Jia, S. M., Karpov, S., Kaeouach, A., Kiendrebeogo, R. W., Klotz, A., Kneip, R., Kochiashvili, N., Kunert, N., Lekic, A., Leonini, S., Li, C. K., Li, W., Li, X. B., Liao, J. Y., Logie, L., Lu, F. J., Mao, J., Marchais, D., Ménard, R., Morris, D., Natsvlishvili, R., Nedora, V., Noonan, K., Noysena, K., Orange, N. B., Pang, P. T. H., Peng, H. W., Pellouin, C., Peloton, J., Pradier, T., Pyshna, O., Rajabo, Y., Rau, S., Rinner, C., Rivet, J. -P., Romanov, F. D., Rosi, P., Rupchandani, V. A., Serrau, M., Shokry, A., Simon, A., Smith, K., Sokoliuk, O., Soliman, M., Song, L. M., Takey, A., Tillayev, Y., Ramirez, L. M. Tinjaca, Melo, I. Tosta e, Turpin, D., Postigo, A. de Ugarte, Vanaverbeke, S., Vasylenko, V., Vernet, D., Vidadi, Z., Wang, C., Wang, J., Wang, L. T., Wang, X. F., Xiong, Shaolin L., Xu, Y. P., Xue, W. C., Zeng, X., Zhang, S. N., Zhao, H. S., Zhao, X. F.

GRB 221009A is the brightest Gamma-Ray Burst (GRB) detected in more than 50 years of study. In this paper, we present observations in the X-ray and optical domains after the GRB obtained by the GRANDMA Collaboration (which includes observations from

Externí odkaz: http://arxiv.org/abs/2302.06225

Stellar activity analysis of Barnard's Star: Very slow rotation and evidence for long-term activity cycle

Autor: Toledo-Padrón, B., Hernández, J. I. González, Rodríguez-López, C., Mascareño, A. Suárez, Rebolo, R., Butler, R. P., Ribas, I., Anglada-Escudé, G., Johnson, E. N., Reiners, A., Caballero, J. A., Quirrenbach, A., Amado, P. J., Béjar, V. J. S., Morales, J. C., Perger, M., Jeffers, S. V., Vogt, S., Teske, J., Shectman, S., Crane, J., Díaz, M., Arriagada, P., Holden, B., Burt, J., Rodríguez, E., Herrero, E., Murgas, F., Pallé, E., Morales, N., López-González, M. J., Alonso, E. Díez, Tuomi, M., Kiraga, M., Engle, S. G., Guinan, E. F., Strachan, J. B. P., Aceituno, F. J., Aceituno, J., Casanova, V. M., Martín-Ruiz, S., Montes, D., Ortiz, J. L., Sota, A., Briol, J., Barbieri, L., Cervini, I., Deldem, M., Dubois, F., Hambsch, F. -J., Harris, B., Kotnik, C., Logie, L., Lopez, J., McNeely, M., Ogmen, Y., Pérez, L., Rau, S., Rodríguez, D., Urquijo, F. S., Vanaverbeke, S.

The search for Earth-like planets around late-type stars using ultra-stable spectrographs requires a very precise characterization of the stellar activity and the magnetic cycle of the star, since these phenomena induce radial velocity (RV) signals t

Externí odkaz: http://arxiv.org/abs/1812.06712

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International observational campaign of the 2014 eclipse of EE Cephei

Autor: Pieńkowski, D. Gałan, C. Tomov, T. Gazeas, K. Wychudzki, P. Mikołajewski, M. Kubicki, D. Staels, B. Zoła, S. Pakońska, P. Dèbski, B. Kundera, T. Ogłoza, W. Dróz, M. Baran, A. Winiarski, M. Siwak, M. DImitrov, D. Kjurkchieva, D. Marchev, D. Armiński, A. Miller, I. Kołaczkowski, Z. Mozdzierski, D. Zahajkiewicz, E. Bruś, P. Pigulski, A. Smela, T. Conseil, E. Boyd, D. Conidis, G.J. Plauchu-Frayn, I. Heras, T.A. Kardasis, E. Biskupski, M. Kneip, R. Hambálek, L. Pribulla, T. Kundra, E. Garai, Z. Rodriguez, D. Kamiński, T. Dubois, F. Logie, L. Capetillo Blanco, A. Kankiewicz, P. Swierczyński, E. Martignoni, M. Sergey, I. Kare Trandem Qvam, J. Semkov, E. Ibryamov, S. Peneva, S. Gonzalez Carballo, J.-L. Ribeiro, J. Dean, S. Apostolovska, G. Donchev, Z. Corp, L. McDonald, P. Rodriguez, M. Sanchez, A. Wiersema, K. Conseil, E. Menke, J. Sergey, I. Richardson, N.

Context. EE Cep is one of few eclipsing binary systems with a dark, dusty disc around an invisible object similar to ϵ Aur. The system is characterised by grey and asymmetric eclipses every 5.6 yr that have significant variations in their photometri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2127::056ac5ace4193ab69063e491b145c2e1
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3068701

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