Zobrazeno 1 - 10
of 839
pro vyhledávání: '"Pigulski A."'
Blue large-amplitude pulsators (BLAPs) are a recently discovered group of hot stars pulsating in radial modes. Their origin needs to be explained, and several scenarios for their formation have already been proposed. We investigate whether BLAPs can
Externí odkaz:
http://arxiv.org/abs/2410.00154
Autor:
Kołaczek-Szymański, Piotr Antoni, Łojko, Piotr, Pigulski, Andrzej, Różański, Tomasz, Moździerski, Dawid
Publikováno v:
A&A 686, A199 (2024)
Evolution of massive stars is dominated by interactions within binary systems. Therefore, it is necessary to investigate all forms of interaction in binary systems that may affect the evolution of the components. One of such laboratories is the massi
Externí odkaz:
http://arxiv.org/abs/2309.16532
Autor:
Oplištilová, A., Mayer, P., Harmanec, P., Brož, M., Pigulski, A., Božić, H., Zasche, P., Šlechta, M., Pablo, H., Kołaczek-Szymański, P. A., Moffat, A. F. J., Lovekin, C. C., Wade, G. A., Zwintz, K., Popowicz, A., Weiss, W. W.
Publikováno v:
A&A 672, A31 (2023)
$\delta$ Orionis is the closest massive multiple stellar system and one of the brightest members of the Orion OB association. The primary (Aa1) is a unique evolved O star. In this work, we applied a two-step disentangling method to a series of spectr
Externí odkaz:
http://arxiv.org/abs/2301.10290
Autor:
Handler G., Pigulski A., Weiss W. W., Moffat A. F. J., Kuschnig R., Wade G. A., Orleański G., Ruciński S. M., Koudelka O., Smolec R., Zwintz K., Matthews J. M., Popowicz A., Baade D., Neiner C., Pamyatnykh A. A., Rowe J., Schwarzenberg-Czerny A.
Publikováno v:
EPJ Web of Conferences, Vol 160, p 01001 (2017)
The BRIght Target Explorer (BRITE) Constellation is the first nanosatellite mission applied to astrophysical research. Five satellites in low-Earth orbits perform precise optical two-colour photometry of the brightest stars in the night sky. BRITE is
Externí odkaz:
https://doaj.org/article/8c3c78dc8e63465581d476f466a4b93a
Autor:
Harmanec, P., Zasche, P., Brož, M., Catalan-Hurtado, R., Barlow, B. N., Frondorf, W., Wolf, M., Drechsel, H., Chini, R., Nasseri, A., Pigulski, A., Labadie-Bartz, J., Christie, G. W., Walker, W. S. G., Blackford, M., Blane, D., Henden, A. A., Bohlsen, T., Božić, H., Jonák, J.
Publikováno v:
A&A 666, A23 (2022)
The hot nine-component system HD 93206, which contains a gravitationally bounded eclipsing Ac1+Ac2 binary ($P=5.9987$~d) and a spectroscopic Aa1+Aa2 ($P=20.734$~d) binary can provide~important insights into the origin and evolution of massive stars.
Externí odkaz:
http://arxiv.org/abs/2204.07045
Publikováno v:
A&A 663, A62 (2022)
Blue large-amplitude pulsators (BLAPs) form a small group of hot objects pulsating in a fundamental radial mode with periods of the order of 30 minutes. Proposed evolutionary scenarios explain them as evolved low-mass stars: either ~0.3 M$_\odot$ she
Externí odkaz:
http://arxiv.org/abs/2203.11789
Publikováno v:
A&A 659, A47 (2022)
Eccentric ellipsoidal variables (aka heartbeat stars) is a class of eccentric binaries in which proximity effects, tidal distortion due to time-dependent tidal potential in particular, lead to measurable photometric variability close to the periastro
Externí odkaz:
http://arxiv.org/abs/2109.11508
Autor:
Marabotti, Pietro, Milani, Alberto, Lucotti, Andrea, Brambilla, Luigi, Tommasini, Matteo, Castiglioni, Chiara, Męcik, Patrycja, Pigulski, Bartłomiej, Szafert, Sławomir, Casari, Carlo Spartaco
Publikováno v:
Carbon Trends Volume 5, 100115, 2021
The vibrational properties of a series of push-pull polyynes have been studied by infrared and Raman spectroscopy. The simultaneous activation of a strong infrared and Raman mode, i.e. the collective vibration of CC bonds of the sp carbon chain, high
Externí odkaz:
http://arxiv.org/abs/2108.00155
Autor:
W, Weiss W., K., Zwintz, R., Kuschnig, G., Handler, J., Moffat A. F., D., Baade, M., Bowman D., T., Granzer, T., Kallinger, F., Koudelka O., C., Lovekin C., C., Neiner, H., Pablo, A., Pigulski, A., Popowicz, T., Ramiaramanantsoa, M., Rucinski S., G., Strassmeier K., A, Wade G.
Publikováno v:
Universe 2021, 7, 199
BRITE-Constellation is devoted to high-precision optical photometric monitoring of bright stars, distributed all over the Milky Way, in red and/or blue passbands. Photometry from space avoids the turbulent and absorbing terrestrial atmosphere and all
Externí odkaz:
http://arxiv.org/abs/2106.12952
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