Results 31 to 40 of about 22,401 (191)

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

Infrared Dark Clouds in the Small Magellanic Cloud? [PDF]

, 2009
We have applied the unsharp-masking technique to the 24 $\mu$m image of the Small Magellanic Cloud (SMC), obtained with the Spitzer Space Telescope, to search for high-extinction regions.
Alberto D. Bolatto, Azzopardi, Bernard, Bolatto, Bolatto, Bolatto, Carey, Carey, Chin, Clarke, Dickel, Dickey, Dobashi, Egan, Gordon, Groenewegen, Heikkilä, Henkel, Israel, Jacco Th. van Loon, Jackson, Joana M. Oliveira, Jürgen Ott, Kathryn E. Devine, Kunkel, Lequeux, Lequeux, Leroy, Leroy, Maria R. Cunningham, Markwardt, McGee, Millar, Min-Young Lee, Mizuno, Oliveira, Osterberg, Paul A. Jones, Pérault, Rathborne, Rubio, Rubio, Sault, Sauvage, Simon, Simon, Snežana Stanimirović, Stanimirović, Staveley-Smith, Ungerechts, Vangioni-Flam, Wang, Wang, Werner, Westerlund, Westerlund, Wong, Ye   +57 more
core   +1 more source

Optical Spectra of Radio Planetary Nebulae in the Small Magellanic Cloud [PDF]

Serbian Astronomical Journal, 2008
We present preliminary results from spectral observations of four (4) candidate radio sources co-identified with known planetary nebulae (PNe) in the Small Magellanic Cloud (SMC).
Payne, J. L., Filipović, M. D., Crawford, E. J., De Horta, A. Y., White, G. L., Stootman, F. H.   +5 more
doaj   +3 more sources

Low-excitation blobs in the Magellanic Clouds [PDF]

, 2006
Aims : We study an unknown, or very poorly known, interstellar HII component in the Magellanic Clouds. This is the first study ever devoted to this class of objects, which we call Low-excitation blobs (LEBs).
Abrahamyan, Alves, Bouret, Brocklehurst, Caplan, Davies, Deharveng, Dopita, F. Meynadier, Heap, Henize, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Heydari-Malayeri, Howarth, Jacoby, M. Heydari-Malayeri, Martins, Martins, Massey, Meyssonnier, Mokiem, Morgan, Morgan, Parker, Peña, Sanduleak, Sanduleak, Simpson, Stasinska, Stasinska, Walker   +39 more
core   +4 more sources

Supernova remnants in nearby galaxies

Astronomische Nachrichten, Volume 341, Issue 2, Page 156-162, February 2020., 2020
Abstract Supernova remnants (SNRs) are the aftermath of stellar explosions, which inject large amounts of energy into the interstellar medium (ISM), carving out new structures and transferring kinetic energy to the ISM. They also act as recycling centers, which return elements processed in stars to the ISM, and cosmic particle accelerators.
Manami Sasaki
wiley   +1 more source

Properties of Anomalous and Type II Cepheids in the Small and Large Magellanic Clouds

EPJ Web of Conferences, 2017
The Small Magellanic Cloud (SMC) and Large Magellanic Cloud (LMC) give us the possibility to study individual variable star types in a new way. Literature data provide us with photometric information about objects from the ultraviolet to the infrared ...
Jurkovic Monika I., Groenewegen Martin A.T.   +1 more
doaj   +1 more source

The period distribution of Cepheids: a test of stellar evolution

EPJ Web of Conferences, 2015
The period distributions of classical Cepheids in the Small and Large Magellanic Cloud are quite different. Using the TRILEGAL population synthesis code and a theoretical instability strip the ultimate aim is to understand these differences ...
Groenewegen M.A.T., Girardi L.
doaj   +1 more source

Modeling CO, CO$_2$ and H$_2$O ice abundances in the envelopes of young stellar objects in the Magellanic Clouds

, 2018
Massive young stellar objects in the Magellanic Clouds show infrared absorption features corresponding to significant abundances of CO, CO$_2$ and H$_2$O ice along the line of sight, with the relative abundances of these ices differing between the ...
Garrod, R. T., Pauly, Tyler
core   +1 more source

INTEGRAL observations of the Small Magellanic Cloud

, 2007
The first INTEGRAL observations of the Small Magellanic Cloud (carried out in 2003) are reported in which two sources are clearly detected. The first source, SMC X-1, shows a hard X-ray eclipse and measurements of its pulse period indicate a continuation
Bird, A. J., Coe, M. J., Corbet, R. H. D., Dean, A. J., Finger, M., Hill, A. B., McBride, V. A., McGowan, K. E., Negueruela, I., Schurch, M. P. E., Soszynski, I., Udalski, A., Wilson, C. A.   +12 more
core   +1 more source

Testing the effects of opacity and the chemical mixture on the excitation of pulsations in B stars of the Magellanic Clouds [PDF]

, 2012
The B-type pulsators known as \beta Cephei and Slowly Pulsating B (SPB) stars present pulsations driven by the \kappa mechanism, which operates thanks to an opacity bump due to the iron group elements.
A. Miglio, A. Noels, Aerts, Andrievsky, Angulo, Asplund, Asplund, Ausseloos, Badnell, Bahcall, Baker, Briquet, Buchler, Böhm-Vitense, Carrera, Cox, Cox, Daszyńska-Daszkiewicz, Daszyńska-Daszkiewicz, De Propris, Desmet, Diago, Dupret, Dupret, Dziembowski, Dziembowski, Dziembowski, Esteban, Formicola, Garnett, Gilles, Gonzalez, Grevesse, Hill, Hill, Hill, Hunter, Hunter, Hunter, Idiart, Iglesias, J. Montalbán, Jeffery, Karoff, Korn, Korn, Korn, Kołaczkowski, Kurt, Lebouteiller, Lennon, Loisel, Luck, M.-A. Dupret, Mazumdar, Miglio, Miglio, Montalbán, Montalbán, Montalbán, Moskalik, Pamyatnykh, Pamyatnykh, Pamyatnykh, Parisi, Parisi, Peimbert, Piatti, Piatti, Reyes, Rogers, Rogers, Rolleston, Rolleston, Romaniello, Russell, S. Salmon, Sarro, Scuflaire, Seaton, Seaton, Simon, Stankov, T. Morel, Thoul, Trundle, Turck-Chièze, Unno, Venn, Venn, Vermeij, Waelkens, Zdravkov   +92 more
core   +1 more source