High-energy spectra of LTT 1445A and GJ 486 reveal flares and activity

Autor: Diamond-Lowe, H., King, G. W., Youngblood, A., Brown, A., Howard, W. S., Winters, J. G., Wilson, D. J., France, K., Mendonça, J. M., Buchhave, L. A., Corrales, L., Kreidberg, L., Medina, A. A., Bean, J. L., Berta-Thompson, Z. K., Evans-Soma, T. M., Froning, C., Duvvuri, G. M., Kempton, E. M. -R., Miguel, Y., Pineda, J. S., Schneider, C.

Publikováno v: A&A 689, A48 (2024)

The high-energy radiative output, from the X-ray to the ultraviolet, of exoplanet host stars drives photochemical reactions and mass loss in the upper regions of planetary atmospheres. In order to place constraints on the atmospheric properties of th

Externí odkaz: http://arxiv.org/abs/2407.00165

Multi-band analyses of the bright GRB 230812B and the associated SN2023pel

Autor: Hussenot-Desenonges, T., Wouters, T., Guessoum, N., Abdi, I., Abulwfa, A., Adami, C., Fernández, J. F. Agüí, Ahumada, T., Aivazyan, V., Akl, D., Anand, S., Andrade, C. M., Antier, S., Ata, S. A., D'Avanzo, P., Azzam, Y. A., Baransky, A., Basa, S., Blazek, M., Bendjoya, P., Beradze, S., Boumis, P., Bremer, M., Brivio, R., Buat, V., Bulla, M., Burkhonov, O., Burns, E., Cenko, S. B., Corradi, W., Coughlin, M. W., Daigne, F., Dietrich, T., Dornic, D., Ducoin, J. -G., Duverne, P. -A., Elhosseiny, E. G., Elnagahy, F. I., El-Sadek, M. A., Ferro, M., Floc'h, E. Le, Freeberg, M., Fynbo, J. P. U., Götz, D., Gurbanov, E., Hamed, G. M., Hasanov, E., Healy, B. F., Heintz, K. E., Hello, P., Inasaridze, R., Iskandar, A., Ismailov, N., Izzo, L., Jhawar, S., Laz, T. Jegou du, Kamel, T. M., Karpov, S., Klotz, A., Koulouridis, E., Kuin, N. P., Kochiashvili, N., Leonini, S., Lu, K. -X., Malesani, D. B., Masek, M., Mao, J., Melandri, A., Mihov, B. M., Natsvlishvili, R., Navarete, F., Nedora, V., Nicolas, J., Odeh, M., Palmerio, J., Pang, P. T. H., De Pasquale, M., Peng, H. W., Pormente, S., Peloton, J., Pradier, T., Pyshna, O., Rajabov, Y., Rakotondrainibe, N. A., Rivet, J. -P., Rousselot, L., Saccardi, A., Sasaki, N., Schneider, B., Serrau, M., Shokry, A., Slavcheva-Mihova, L., Simon, A., Sokoliuk, O., Srinivasaragavan, G., Strausbaugh, R., Tanvir, N. R., Takey, A., Thöne, C. C., Tillayev, Y., Melo, I. Tosta e, Turpin, D., Postigo, A. de Ugarte, Vasylenko, V., Vergani, S. D., Vidadi, Z., Xu, D., Wang, L. T., Wang, X. F., Winters, J. M., Zhang, X -L., Zhu, Z.

GRB~230812B is a bright and relatively nearby ($z =0.36$) long gamma-ray burst (GRB) that has generated significant interest in the community and has thus been observed over the entire electromagnetic spectrum. We report over 80 observations in X-ray

Externí odkaz: http://arxiv.org/abs/2310.14310

Kinematics and stability of high-mass protostellar disk candidates at sub-arcsecond resolution -- Insights from the IRAM NOEMA large program CORE

Autor: Ahmadi, Aida, Beuther, H., Bosco, F., Gieser, C., Suri, S., Mottram, J. C., Kuiper, R., Henning, Th., Sánchez-Monge, Á., Linz, H., Pudritz, R. E., Semenov, D., Winters, J. M., Möller, T., Beltrán, M. T., Csengeri, T., Galván-Madrid, R., Johnston, K. G., Keto, E., Klaassen, P. D., Leurini, S., Longmore, S. N., Lumsden, S. L., Maud, L. T., Moscadelli, L., Palau, A., Peters, T., Ragan, S. E., Urquhart, J. S., Zhang, Q., Zinnecker, H.

Publikováno v: A&A 677, A171 (2023)

The fragmentation mode of high-mass molecular clumps and the accretion processes that form the most massive stars ($M\gtrsim 8M_\odot$) are still not well understood. To this end, we have undertaken a large observational program (CORE) making use of

Externí odkaz: http://arxiv.org/abs/2305.00020

The HD 260655 system: Two rocky worlds transiting a bright M dwarf at 10 pc

Autor: Luque, R., Fulton, B. J., Kunimoto, M., Amado, P. J., Gorrini, P., Dreizler, S., Hellier, C., Henry, G. W., Molaverdikhani, K., Morello, G., Peña-Moñino, L., Pérez-Torres, M., Pozuelos, F. J., Shan, Y., Anglada-Escudé, G., Béjar, V. J. S., Bergond, G., Boyle, A. W., Caballero, J. A., Charbonneau, D., Ciardi, D. R., Dufoer, S., Espinoza, N., Everett, M., Fischer, D., Hatzes, A. P., Henning, Th., Hesse, K., Howard, A., Howell, S. B., Isaacson, H., Jeffers, S. V., Jenkins, J. M., Kane, S. R., Kemmer, J., Khalafinejad, S., Kidwell Jr., R. C., Kossakowski, D., Latham, D. W., Lillo-Box, J., Lissauer, J. J., Montes, D., Orell-Miquel, J., Pallé, E., Pollacco, D., Quirrenbach, A., Reffert, S., Reiners, A., Ribas, I., Ricker, G. R., Rogers, L. A., Sanz-Forcada, J., Schlecker, M., Schweitzer, A., Seager, S., Shporer, A., Stassun, K. G., Stock, S., Tal-Or, L., Ting, E. B., Trifonov, T., Vanaverbeke, S., Vanderspek, R., Villaseñor, J., Winn, J. N., Winters, J. G., Osorio, M. R. Zapatero

Publikováno v: A&A 664, A199 (2022)

We report the discovery of a multi-planetary system transiting the M0 V dwarf HD 260655 (GJ 239, TOI-4599). The system consists of at least two transiting planets, namely HD 260655 b, with a period of 2.77 d, a radius of R$_b$ = 1.240$\pm$0.023 R$_\o

Externí odkaz: http://arxiv.org/abs/2204.10261

Clustered star formation at early evolutionary stages. Physical and chemical analysis of the young star-forming regions ISOSS J22478+6357 and ISOSS J23053+5953

Autor: Gieser, C., Beuther, H., Semenov, D., Suri, S., Soler, J. D., Linz, H., Syed, J., Henning, Th., Feng, S., Möller, T., Palau, A., Winters, J. M., Beltrán, M. T., Kuiper, R., Moscadelli, L., Klaassen, P., Urquhart, J. S., Peters, T., Longmore, S. N., Sánchez-Monge, Á., Galván-Madrid, R., Pudritz, R. E., Johnston, K. G.

Publikováno v: A&A 657, A3 (2022)

We aim to characterize the physical and chemical properties of fragmented cores during the earliest evolutionary stages in the very young star-forming regions ISOSS J22478+6357 and ISOSS J23053+5953. NOEMA 1.3 mm data are used in combination with arc

Externí odkaz: http://arxiv.org/abs/2110.01896