Results 61 to 70 of about 30,407 (253)

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

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

The Distances of the Magellanic Clouds [PDF]

, 1998
The present status of our knowledge of the distances to the Magellanic Clouds is evaluated from a post-Hipparcos perspective. After a brief summary of the effects of structure, reddening, age and metallicity, the primary distance indicators for the Large
A Gautschy, A Gould, A Gould, A Gould, A Gould, A Saha, A Udalski, AC Layden, AJ Wesselink, AM Fry, APS Crotts, AR Walker, AR Walker, B Paczyński, B Paczyński, BE Westerlund, BF Madore, BF Madore, BF Madore, BW Carney, C Alcock, C Alcock, CD Laney, CD Laney, CS Kochanek, D Burstein, D Sasselov, DL Welch, E Dwek, EM Wilcots, EW Olszewski, EW Olszewski, F Leeuwen van, F Pont, FP Israel, G Clementini, G Sonneborn, G Sonneborn, G Vaucouleurs de, GH Jacoby, GH Jacoby, GH Jacoby, GP Benedetto di, HE Bond, IN Reid, J Fernley, J Fernley, J Spyromilio, J Xu, JAR Caldwell, JAR Caldwell, JC Blades, JP Beaulieu, JW Pel, KC Freeman, KZ Stanek, L Lindegren, LA Balona, M Catelan, M Livio, M Sekiguchi, M Valle Delia, MAC Perryman, MAT Groenewegen, MG Lee, MO Oestreicher, MO Oestreicher, MS Bessell, MS Bessell, MW Feast, MW Feast, MW Feast, MW Feast, N Panagia, NR Tanvir, P Fouqué, P Jakobsen, P Lundqvist, PC Plait, RA Bell, RA Schommer, RC Kennicutt, RE Luck, RG Gratton, RX McGee, ST Ridgway, T Luks, TG Barnes, TL Gardiner, V Caloi, V Radhakrishnan, W Baade, WL Freedman, WL Freedman, WP Gieren, WP Gieren   +95 more
core   +3 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 100 Strongest Radio Point Sources in the Field of the Large Magellanic Cloud at 1.4 GHz [PDF]

Serbian Astronomical Journal, 2009
We present the 100 strongest 1.4~GHz point sources from a new mosaicimage in the direction of the Large Magellanic Cloud (LMC). The observationsmaking up the mosaic were made using Australia Telescope Compact Array (ATCA)over a ten year period and were ...
Payne, J. L., Tauber, L. A., Filipović, M. D., Crawford, E. J., De Horta, A. Y.   +4 more
doaj   +3 more sources

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  

New 6 and 3-cm radio-continuum maps of the Small Magellanic Cloud - part II: Point source catalogue [PDF]

Serbian Astronomical Journal, 2012
We present two new catalogues of radio-continuum sources in the field of the Small Magellanic Cloud (SMC). These catalogues contain sources found at 4800 MHz (λ=6cm) and 8640 MHz (λ=3cm).
Wong G.F., Crawford E.J., Filipović M.D., de Horta A.Y., Tothill N.F.H., Collier J.D., Drašković D., Galvin T.J., Payne J.L.   +8 more
doaj   +1 more source

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

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

Variation in X_CO Factor in N55 Region

Universe
The XCO factor is defined as XCO=N(H2)/W12CO. It is useful for estimating cloud mass. However, there is only limited research on how the XCO factor varies within a single cloud.
Qiang Li, Mingyue Li, Li Zhang, Songpeng Pei   +3 more
doaj   +1 more source