Zobrazeno 1 - 10
of 632
pro vyhledávání: '"CLARK, J. S."'
We aim to investigate the nature of time-variable X-ray sources detected in the {\it XMM-Newton} serendipitous survey. The X-ray light curves of objects in the {\it XMM-Newton} serendipitous survey were searched for variability and coincident serendi
Externí odkaz:
http://arxiv.org/abs/2401.02468
Serving as the progenitors of electromagnetic and gravitational wave transients, massive stars have received renewed interest in recent years. However, many aspects of their birth and evolution remain opaque, particularly in the context of binary int
Externí odkaz:
http://arxiv.org/abs/2302.04008
Publikováno v:
A&A 660, A89 (2022)
The galactic cluster Westerlund 1 contains a rich population of evolved, massive stars, and a high binary fraction has been inferred from previous multiwavelength observations. We use multi-epoch spectroscopy of a large sample of early-type stars to
Externí odkaz:
http://arxiv.org/abs/2111.12463
Autor:
Hodgkin, S. T., Harrison, D. L., Breedt, E., Wevers, T., Rixon, G., Delgado, A., Yoldas, A., Kostrzewa-Rutkowska, Z., Wyrzykowski, Ł., van Leeuwen, M., Blagorodnova, N., Campbell, H., Eappachen, D., Fraser, M., Ihanec, N., Koposov, S. E., Kruszyńska, K., Marton, G., Rybicki, K. A., Brown, A. G. A., Burgess, P. W., Busso, G., Cowell, S., De Angeli, F., Diener, C., Evans, D. W., Gilmore, G., Holland, G., Jonker, P. G., van Leeuwen, F., Mignard, F., Osborne, P. J., Portell, J., Prusti, T., Richards, P. J., Riello, M., Seabroke, G. M., Walton, N. A., Ábrahám, Péter, Altavilla, G., Baker, S. G., Bastian, U., O'Brien, P., de Bruijne, J., Butterley, T., Carrasco, J. M., Castañeda, J., Clark, J. S., Clementini, G., Copperwheat, C. M., Cropper, M., Damljanovic, G., Davidson, M., Davis, C. J., Dennefeld, M., Dhillon, V. S., Dolding, C., Dominik, M., Esquej, P., Eyer, L., Fabricius, C., Fridman, M., Froebrich, D., Garralda, N., Gomboc, A., González-Vidal, J. J., Guerra, R., Hambly, N. C., Hardy, L. K., Holl, B., Hourihane, A., Japelj, J., Kann, D. A., Kiss, C., Knigge, C., Kolb, U., Komossa, S., Kóspál, Á., Kovács, G., Kun, M., Leto, G., Lewis, F., Littlefair, S. P., Mahabal, A. A., Mundell, C. G., Nagy, Z., Padeletti, D., Palaversa, L., Pigulski, A., Pretorius, M. L., van Reeven, W., Ribeiro, V. A. R. M., Roelens, M., Rowell, N., Schartel, N., Scholz, A., Schwope, A., Sipőcz, B. M., Smartt, S. J., Smith, M. D., Serraller, I., Steeghs, D., Sullivan, M., Szabados, L., Szegedi-Elek, E., Tisserand, P., Tomasella, L., van Velzen, S., Whitelock, P. A, Wilson, R. W., Young, D. R.
Publikováno v:
A&A 652, A76 (2021)
Since July 2014, the Gaia mission has been engaged in a high-spatial-resolution, time-resolved, precise, accurate astrometric, and photometric survey of the entire sky. Aims: We present the Gaia Science Alerts project, which has been in operation sin
Externí odkaz:
http://arxiv.org/abs/2106.01394
Autor:
Shenar, T., Sana, H., Marchant, P., Pablo, B., Richardson, N., Moffat, A. F. J., Van Reeth, T., Barba, R. H., Bowman, D. M., Broos, P., Crowther, P. A., Clark, J. S., de Koter, A., de Mink, S. E., Dsilva, K., Graefener, G., Howarth, I. D., Langer, N., Mahy, L., Apellaniz, J. Maiz, Pollock, A. M. T., Schneider, F. R. N., Townsley, L., Vink, J. S.
Publikováno v:
A&A 650, A147 (2021)
R 144 is the visually brightest WR star in the Large Magellanic Cloud (LMC). R 144 was reported to be a binary, making it potentially the most massive binary thus observed. We perform a comprehensive spectral, photometric, orbital, and polarimetric a
Externí odkaz:
http://arxiv.org/abs/2104.03323
Publikováno v:
A&A 649, A43 (2021)
Many galaxies host pronounced circumnuclear starbursts, fuelled by infalling gas. Such activity is expected to drive the secular evolution of the nucleus and generate super winds, while the intense radiation fields and extreme gas and cosmic ray dens
Externí odkaz:
http://arxiv.org/abs/2102.08126
Autor:
Morford, J. C., Fenech, D. M., Prinja, R. K., Blomme, R., Yates, J. A., Drake, J. J., Eyres, S. P. S., Richards, A. M. S., Stevens, I. R., Wright, N. J., Clark, J. S., Dougherty, S., Pittard, J. M., Smith, H., Vink, J. S.
Publikováno v:
A&A 637, A64 (2020)
The role of massive stars is central to an understanding of galactic ecology. It is important to establish the details of how massive stars provide radiative, chemical, and mechanical feedback in galaxies. Central to these issues is an understanding
Externí odkaz:
http://arxiv.org/abs/2001.06363
Autor:
Mahy, L., Sana, H., Abdul-Masih, M., Almeida, L. A., Langer, N., Shenar, T., de Koter, A., de Mink, S. E., de Wit, S., Grin, N. J., Evans, C. J., Moffat, A. F. J., Schneider, F. R. N., Barbá, R., Clark, J. S., Crowther, P., Gräfener, G., Lennon, D. J., Tramper, F., Vink, J. S.
Accurate stellar parameters of individual objects in binary systems are essential to constrain the effects of binarity on stellar evolution. These parameters serve as a prerequisite to probing existing and future theoretical evolutionary models. We a
Externí odkaz:
http://arxiv.org/abs/1912.08107
Autor:
Mahy, L., Almeida, L. A., Sana, H., Clark, J. S., de Koter, A., de Mink, S. E., Evans, C. J., Grin, N. J., Langer, N., Moffat, A. F. J., Schneider, F. R. N., Shenar, T., Tramper, F.
Publikováno v:
A&A 634, A119 (2020)
A high fraction of massive stars are found to be binaries but only a few of them are reported as photometrically variable. By studying the populations of SB2 in the 30 Doradus region, we found a subset of them that have photometry from the OGLE proje
Externí odkaz:
http://arxiv.org/abs/1912.06853
Publikováno v:
A&A 632, A38 (2019)
Massive stars and their stellar winds are important for a number of feedback processes. The mass lost in the stellar wind can help determine the end-point of the star as a NS or a BH. However, the impact of mass-loss on the post-Main Sequence evoluti
Externí odkaz:
http://arxiv.org/abs/1909.04339