Results 71 to 80 of about 30,812 (255)

XMM‐Newton Observations of the Peculiar Be X‐Ray Binary A0538‐66

Astronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT A0538‐66 is a neutron star/Be x‐ray binary located in the Large Magellanic Cloud and, since its discovery in the 70s, it showed a peculiar behavior that makes it a unique object in the high‐mass x‐ray binaries scene: the extremely eccentric orbit (e=0.72$$ e=0.72 $$), the short spin period of the neutron star (P=69$$ P=69 $$ ms), the episodes ...
Michela Rigoselli, Caterina Tresoldi, Lorenzo Ducci, Sandro Mereghetti   +3 more
wiley   +1 more source

Concluding Henrietta Leavitt's Work on Classical Cepheids in the Magellanic System and Other Updates of the OGLE Collection of Variable Stars

, 2017
More than a century ago, Henrietta Leavitt discovered the first Cepheids in the Magellanic Clouds together with the famous period-luminosity relationship revealed by these stars, which soon after revolutionized our view of the Universe.
Kozlowski, S., Mróz, P., Pawlak, M., Pietrukowicz, P., Poleski, R., Skowron, D., Skowron, J., Soszyński, I., Szymański, M. K., Udalski, A., Ulaczyk, K., Wyrzykowski, Ł.   +11 more
core   +1 more source

Cepheids in the Magellanic Clouds [PDF]

, 1995
In the past few years, the Magellanic Clouds have been the targets for several major variable star surveys. The results of these surveys are now becoming available and it is clear that a Renaissance in LMC and SMC variable star research will result.
Alcock, C., Allsman, R. A., Axelrod, T. S., Bennett, D. P., Cook, K. H., Freeman, K. C., Griest, K., Marshall, S. L., Peterson, B. A., Pratt, M. R., Quinn, P. J., Rodgers, A. W., Stubbs, C. W., Sutherland, W., Welch, D. L.   +14 more
core   +2 more sources

Beyond Accretion Limits: The Rise of Pulsating Gems

Astronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT The discovery of several ultraluminous X‐ray sources exhibiting fast and rapidly evolving X‐ray pulsations unequivocally associates these sources with accreting neutron stars orbiting relatively massive companion stars (> 8M ⊙$$ {}_{\odot } $$).
Gian Luca Israel, Roberta Amato, Matteo Imbrogno, Nicoló Oreste Pinciroli Vago, on behalf of a Larger Team, Guillermo Andres Rodríguez Castillo, Andrea Belfiore, Luigi Stella, Matteo Bachetti, Felix Fürst, Dom Walton, Matthew Middleton, Murray Brightman, Fabio Pintore, Ciro Pinto, Silvia Conforti, Luca Zampieri, Chiara Salvaggio, Anna Wolter, Andrea Tiengo, Andrea De Luca, Paolo Esposito, Ruben Salvaterra, Hannah Earnshaw, Tim Roberts, Andres Gúrpide, Sara Motta   +26 more
wiley   +1 more source

The Large Magellanic Cloud and the Distance Scale

, 2011
The Magellanic Clouds, especially the Large Magellanic Cloud, are places where multiple distance indicators can be compared with each other in a straight-forward manner at considerable precision.
A. Grocholski, A. Saha, A.G. Riess, A.R. Walker, A.Z. Bonanos, Alistair R. Walker, B.E. Schaefer, B.F. Madore, C. Lacey, D. Majaess, D.G. Turner, D.G. Turner, D.L. Nidever, D.R. Alves, D.R. Alves, E. Carretta, E. Kapakos, E. Komatsu, E.F. Fitzpatrick, E.F. Fitzpatrick, E.F. Guinan, F. Leeuwen van, F. Windmark, G. Besla, G. Bono, G. Bono, G. Clementini, G. Clementini, G. Coppola, G. Kovács, G. Pietryński, G. Pietryński, G. Pietryński, G. Torres, G.A. Tammann, G.F. Benedict, G.F. Benedict, G.F. Benedict, G.P. Benedetto di, I. Ribas, I. Soszyński, I. Soszyński, I. Soszyński, I. Soszyński, J. Andersen, J. Borissova, J. Borissova, J. Mould, J. Mould, J. Mould, J. Storm, J. Storm, J.A. Cardelli, J.A.R. Caldwell, J.F. Koewer, J.N. Nemec, K.A.G. Olsen, L. Hislop, L.M. Macri, M. Catelan, M. Catelan, M. Criscienzo Di, M. Dall’Ora, M. Groenwegen, M. Romaniello, M. Salaris, M.W. Feast, M.W. Feast, M.W. Feast, M.W. Feast, O. Pejcha, O. Szewczyk, P. Fouqué, P.A. Whitelock, P.A. Whitelock, P.R. Wood, R.-P. Kudritzki, R.G. Gratton, R.P. Hanson, R.W. Hilditch, R.W. Hilditch, S. Deb, S. Nikolaev, S. Percival, S. Sakai, V. Scowcroft, V. Tabur, W. Gieren, W.L. Freedman, W.L. Freedman, W.L. Freedman, Y. Ita   +91 more
core   +1 more source

Spectral Studies of Super‐Eddington Accreting Neutron Stars in the Magellanic Clouds

Astronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT Major outbursts of BeXRBs offer a unique laboratory for studying accretion onto magnetized neutron stars (NSs) over a large dynamic range. The accreting material is entrained from the accretion disk by the strong magnetic field, and then channeled onto the NS, forming a so‐called accretion column (AC).
Georgios Vasilopoulos, Marios Kouzis, Brent F. West, Peter A. Becker   +3 more
wiley   +1 more source

STEP survey

Astronomy & Astrophysics
Context. The Magellanic Clouds (MCs) offer a unique laboratory for studying galaxy interaction and the evolution of dwarf galaxies. The star formation history (SFH), which traces when and how stars formed, provides powerful constraints for the dynamical ...
Ficara F., Ripepi V., Cignoni M., Gatto M., Marconi M., Tosi M., Bellazzini M., Grebel E. K., Cioni M. R., Tortora C., Mercurio A.   +10 more
doaj   +1 more source

A Catalogue of Fundamental Data for Classical Cepheids in Our Galaxy [PDF]

Journal of Astronomy and Space Sciences, 1985
Fundamental data for 400 classical cepheids have been compiled. The PC-relation is derived and compared with similar relations for the Magellanic Clouds; it is found that the differences are not great.
Chulhee Kim
doaj  

Spatial motion of the Magellanic Clouds. Tidal models ruled out?

, 2008
Recently, Kallivayalil et al. derived new values of the proper motion for the Large and Small Magellanic Clouds (LMC and SMC, respectively). The spatial velocities of both Clouds are unexpectedly higher than their previous values resulting from agreement
Palous, Jan, Ruzicka, Adam, Theis, Christian   +2 more
core   +1 more source

Millimeter observations of the Magellanic Clouds

The Astrophysical Journal, 1990
Millimetric observations (1-2 mm) toward the Magellanic Clouds from Antarctica show a good spatial correlation with the IRAS 100 μm emission in the same sky regions. Very likely a cold component coexisting with the warm dust detected by IRAS has been observed.
Andreani, P., Ceccarelli, C., Dall'oglio, G., Martinis, L., Piccirillo, L., Pizzo, L., Rossi, L., Venturino, C.   +7 more
openaire   +4 more sources