Results 51 to 60 of about 22,251 (204)

The Small Magellanic Cloud Investigation of Dust and Gas Evolution (SMIDGE): The Dust Extinction Curve from Red Clump Stars [PDF]

, 2017
We use Hubble Space Telescope (HST) observations of red clump stars taken as part of the Small Magellanic Cloud Investigation of Dust and Gas Evolution (SMIDGE) program to measure the average dust extinction curve in a ~ 200 pc x 100 pc region in the ...
Dalcanton, Julianne, Dolphin, Andrew E., Gordon, Karl, Johnson, L. Clifton, Merica-Jones, Petia Yanchulova, Roman-Duval, Julia, Sandstrom, Karin M., Weisz, Daniel R., Williams, Benjamin F.   +8 more
core   +2 more sources

Dust and Gas in the Small Magellanic Cloud [PDF]

Symposium - International Astronomical Union, 1999
Here we present four IRAS high resolution images of the Small Magellanic Cloud, as reconstructed by the HIRAS program using the Pyramid Maximum Entropy method (Bontekoe et al. 1994). (HIRAS is not to be confused with HiRes (Aumann et al. 1990).) The images show much more detail than in Schwering & Israel (1990). Dust temperatures range from 25–41 K
Bontekoe, TR, Kester, D. J. M., Stanimirovic, S, Staveley-Smith, L, van der Hulst, J. M.   +4 more
openaire   +2 more sources

A POPULATION OF ACCRETED SMALL MAGELLANIC CLOUD STARS IN THE LARGE MAGELLANIC CLOUD [PDF]

The Astrophysical Journal, 2011
We present an analysis of the stellar kinematics of the Large Magellanic Cloud (LMC) based on ~5900 new and existing velocities of massive red supergiants, oxygen-rich and carbon-rich asymptotic giant branch (AGB) stars, and other giants. After correcting the line-of-sight velocities for the LMC's space motion and accounting for asymmetric drift in the
Knut A. G. Olsen, Dennis Zaritsky, Robert D. Blum, Martha L. Boyer, Karl D. Gordon   +4 more
openaire   +1 more source

Molecular gas in the Small Magellanic Cloud [PDF]

Symposium - International Astronomical Union, 1991
We summarize the results of observations of molecular gas from the Small Magellanic Cloud (SMC) made with low angular resolution (8'.8). These observations show that the CO emission is weak (TA˜ 0.04K) and that the CO luminosities of the Clouds are low compared to those of Galactic molecular clouds.
openaire   +1 more source

The structure of Small Magellanic Cloud star clusters [PDF]

Astronomy & Astrophysics, 2021
The variations in the structural parameters and the internal dynamical evolution of star clusters in the Milky Way and the Large Magellanic Cloud (LMC) caused by the different gravitational field strengths that they experience has been revealed thanks to recent observational data sets.
openaire   +2 more sources

Empirical Measurement of the Dynamical Ages of Three Globular Clusters and Some Considerations on the Use of the Dynamical Clock

The Astrophysical Journal, 2023
We have used the “dynamical clock” to measure the level of dynamical evolution reached by three Galactic globular clusters (namely, NGC 3201, NGC 6316, and NGC 6440).
Francesco R. Ferraro, Barbara Lanzoni, Enrico Vesperini, Mario Cadelano, Dan Deras, Cristina Pallanca   +5 more
doaj   +1 more source

Small Dwarf Galaxies Within Larger Dwarfs: Why Some Are Luminous While Most Go Dark [PDF]

, 2008
We consider the possibility that the Magellanic Clouds were the largest members of a group of dwarf galaxies that entered the Milky Way (MW) halo at late times. Seven of the eleven brightest satellites of the MW may have been part of this system.
Alcock, Avila-Reese, Belokurov, Bertschinger, Besla, Bullock, Colin, D'Onghia, D'Onghia, Elena D'Onghia, George Lake, Grebel, Gyuk, Kallivayalil, Kallivayalil, Kauffmann, Kerr, Kim, Klypin, Koch, Kravtsov, Kunkel, Lin, Lynden-Bell, Lynden-Bell, Metz, Moore, Navarro, Palanque-Delabrouille, Simon, Somerville, Spergel, Stadel, Stanimirovic, Strigari, Tully, Willman, Willman, Zentner, Zentner, Zucker   +40 more
core   +1 more source

Four new planetary nebulae towards the Small Magellanic Cloud [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We present four new planetary nebulae (PNe) discovered in the Small Magellanic Cloud (SMC) from deep UK Schmidt telescope (UKST) narrow band H-alpha and broad-band short-red "SR" continuum images and confirmed spectroscopically. All new PNe show strong [NII]/H-alpha ratios in their spectra.
Parker, QA, Stupar, M, Reid, WA, Drašković, D   +3 more
openaire   +4 more sources

Hα imaging for BeXRBs in the Small Magellanic Cloud [PDF]

Proceedings of the International Astronomical Union, 2016
AbstractThe Small Magellanic Cloud (SMC) hosts a large number of high-mass X-ray binaries, and in particular of Be/X-ray Binaries (BeXRBs; neutron stars orbiting OBe-type stars), offering a unique laboratory to address the effect of metalicity. One key property of their optical companion is Hα in emission, which makes them bright sources when observed ...
G. Maravelias, A. Zezas, V. Antoniou, D. Hatzidimitriou, F. Haberl   +4 more
openaire   +4 more sources

The detection of an older population in the Magellanic Bridge [PDF]

, 2013
The Magellanic system comprises the Large Magellanic Cloud (LMC), the Small Magellanic Cloud (SMC), and the less frequently observed Magellanic Bridge and Magellanic Stream. The Bridge is traced by neutral gas and has an observed stellar component, while
Bagheri, Gemma, Cioni, Maria-Rosa, Napiwotzki, Ralf   +2 more
core   +2 more sources