Results 61 to 70 of about 30,329 (257)

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

DELVE 6: An Ancient, Ultra-faint Star Cluster on the Outskirts of the Magellanic Clouds

The Astrophysical Journal Letters, 2023
We present the discovery of DELVE 6, an ultra-faint stellar system identified in the second data release of the DECam Local Volume Exploration (DELVE) survey. Based on a maximum-likelihood fit to its structure and stellar population, we find that DELVE 6
W. Cerny, A. Drlica-Wagner, T. S. Li, A. B. Pace, K. A. G. Olsen, N. E. D. Noël, R. P. van der Marel, J. L. Carlin, Y. Choi, D. Erkal, M. Geha, D. J. James, C. E. Martínez-Vázquez, P. Massana, G. E. Medina, A. E. Miller, B. Mutlu-Pakdil, D. L. Nidever, J. D. Sakowska, G. S. Stringfellow, J. A. Carballo-Bello, P. S. Ferguson, N. Kuropatkin, S. Mau, E. J. Tollerud, A. K. Vivas, DELVE Collaboration   +26 more
doaj   +1 more source

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

Towards a fundamental astrometric reference system behind the Malleganic clouds : spectroscopic confirmation of new quasar candidates selected in the near-infrared [PDF]

, 2016
Quasi-stellar objects (quasars) located behind nearby galaxies provide an excellent absolute reference system for astrometric studies, but they are difficult to identify because of fore- and background contamination.
Bekki, Kenji, Cioni, Maria-Rosa Lucia, De Grijs, Richard, Emerson, Jim, For, Bi-Qing, Gibson, Brad K., Ivanov, Valentin D., Kamath, Devika, Piatti, Andrés, Van Loon, Jacco Th   +9 more
core   +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

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

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