Results 71 to 80 of about 22,251 (204)

A DETAILED LOOK AT CHEMICAL ABUNDANCES IN MAGELLANIC CLOUD PLANETARY NEBULAE. I. THE SMALL MAGELLANIC CLOUD [PDF]

The Astrophysical Journal, 2010
We present an analysis of elemental abundances of He, N, O, Ne, S, and Ar in Magellanic Cloud planetary nebulae (PNe), and focus initially on 14 PNe in the Small Magellanic Cloud (SMC). We derived the abundances from a combination of deep, high dispersion optical spectra, as well as mid-infrared (IR) spectra from the Spitzer Space Telescope. A detailed
Shaw, Richard A., Lee, Ting-Hui, Stanghellini, Letizia, Davies, James E., García-Hernández, D. Aníbal, García-Lario, Pedro, Perea-Calderón, José V., Villaver, Eva, Manchado, Arturo, Palen, Stacy, Balick, Bruce   +10 more
openaire   +2 more sources

On the Age Distribution of Classical Cepheids in the Galaxy

Astronomische Nachrichten, Volume 346, Issue 5, June 2025.
ABSTRACT We revisit the problem of the positive correlation between age and Galactocentric distance seen in Galactic Classical Cepheids, which at first sight may seem counter‐intuitive in the context of inside‐out galaxy formation. To explain it, we use the Besançon Galaxy Model and a simulation of star particles in the Galactic disc coupled with ...
Friedrich Anders, Chloé Padois, Marc Vilanova Sar, Marcin Semczuk, Marc del Alcázar‐Julià, Francesca Figueras   +5 more
wiley   +1 more source

CO Observations in the Small Magellanic Cloud [PDF]

Symposium - International Astronomical Union, 1984
The dwarf Magellanic irregular galaxies apparently have a very low molecular content compared to the Milky Way. In the LMC, molecular clouds are fairly common, but the ratio of molecular to atomic gas is at least 5 times lower than in the Galaxy (Cohen et al. 1984). Elmegreen et al.
M. Rubio, R. Cohen, J. Montani
openaire   +1 more source

Lactea: Web‐Based Spectrum‐Preserving Multi‐Resolution Visualization of the GAIA Star Catalog

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract The explosion of data in astronomy has resulted in an era of unprecedented opportunities for discovery. The GAIA mission's catalog, containing a large number of light sources (mostly stars) with several parameters such as sky position and proper motion, is playing a significant role in advancing astronomy research and has been crucial in ...
Reem Alghamdi, Markus Hadwiger, Guido Reina, Alberto Jaspe‐Villanueva   +3 more
wiley   +1 more source

UVIT Study of the Magellanic Clouds (U-SMAC). III. Hierarchical Star Formation in the Small Magellanic Cloud Regulated by Turbulence

The Astrophysical Journal
The Small Magellanic Cloud (SMC), a satellite galaxy of the Milky Way, is an irregular dwarf galaxy exhibiting evidence of recent and ongoing star formation.
Sipra Hota, Richard de Grijs, Annapurni Subramaniam   +2 more
doaj   +1 more source

N-body simulations of the Magellanic Stream

, 2005
A suite of high-resolution N-body simulations of the Magellanic Clouds -- Milky Way system are presented and compared directly with newly available data from the HI Parkes All-Sky Survey (HIPASS).
Barnes, Bekki, Bekki, Binney, Brad K. Gibson, Brueck, Brüns, Daisuke Kawata, Dopita, Faber, Feast, Fich, Gardiner, Gardiner, Gardiner, Gibson, Hardy, Hashimoto, Hatzidimitriou, Ibata, Just, Kawata, Knebe, Kuijken, Lin, Lu, Maddison, Martin, Mastropietro, Mathewson, Mathewson, Moore, Muller, Murai, Murali, Philip, Philip, Putman, Putman, Recillas-Cruz, Schommer, Stanimirović, Stanimirović, Swaters, Tim W. Connors, Tully, Van Der Marel, Wakker, Wakker, Yoshizawa, Zhao   +50 more
core   +1 more source

Infrared extinction in the Small Magellanic Cloud [PDF]

Monthly Notices of the Royal Astronomical Society, 1984
On presente la photometrie JHK de membres des premiers types du PNM, brillants, rougis et non rougis, et on etudie la loi d'extinction dans ces bandes. La photometrie VRI de plusieurs membres des premiers types du PNM est egalement presentee et combinee aux observations existantes pour etudier l'extinction R et I.
K. Nandy, D. H. Morgan, L. Houziaux
openaire   +1 more source

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

Discovery of a loose star cluster in the Large Magellanic Cloud [PDF]

, 2016
We present results for an up-to-date uncatalogued star cluster projected towards the Eastern side of the Large Magellanic Cloud (LMC) outer disc. The new object was discovered from a search of loose star cluster in the Magellanic Clouds' (MCs) outskirts ...
Piatti, Andrés E.
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