Results 61 to 70 of about 19,928 (198)

Star Formation in the Field and Clusters of NGC 5253 [PDF]

, 2001
We investigate the star formation history of both the bright star clusters and the diffuse `field star' population in the dwarf starburst galaxy NGC 5253 using STIS longslit ultraviolet spectroscopy.
Buat V., Campbell A., Campbell A. W., Christy A. Tremonti, Claus Leitherer, Daniela Calzetti, Garcia-Vargas M. L., Puls J., Timothy M. Heckman, Walsh J. R.   +9 more
core   +2 more sources

Blanco DECam Bulge Survey (BDBS). VI. Extinction Maps Toward Southern Galactic Bulge Globular Clusters

The Astrophysical Journal, 2023
We present wide-field, high resolution maps of the color excess for 14 globular clusters toward the Southern Galactic bulge. The maps were derived using Gaia EDR3 astrometry and stellar photometry from the Blanco DECam Bulge Survey, which is a deep, wide-
Justin A. Kader, Catherine A. Pilachowski, Christian I. Johnson, R. Michael Rich, Michael D. Young, Iulia T. Simion, William I. Clarkson, Scott Michael, Andrea Kunder, Anna Katherina Vivas, Andreas J. Koch-Hansen, Tommaso Marchetti   +11 more
doaj   +1 more source

Diffuse interstellar bands in M33

, 2013
We present the first sample of diffuse interstellar bands (DIBs) in the nearby galaxy M33. Studying DIBs in other galaxies allows the behaviour of the carriers to be examined under interstellar conditions which can be quite different from those of the ...
Cordiner, Martin A., Cox, Nick L. J., Evans, Christopher J., Sarre, Peter J., Smith, Keith T.   +4 more
core   +1 more source

X-ray Halos and Large Grains in the Diffuse Interstellar Medium [PDF]

, 2001
Recent observations with dust detectors on board the interplanetary spacecraft Ulysses and Galileo have recorded a substantial flux of large interstellar grains with radii between 0.25 and 2.0 mu entering the solar system from the local interstellar ...
Adolf N. Witt, Anders E., Baguhl M., Eli Dwek, Landgraf M., Lehtinen K., Paresce F., Predehl P., Randall K. Smith, Smith R. K., Wiscombe W. J., Witte M.   +11 more
core   +2 more sources

The Effect of a Nonuniversal Extinction Curve on the Wesenheit Function and Cepheid Distances

The Astrophysical Journal Letters
The Wesenheit function is widely used to reduce the effects of interstellar reddening in distance measurements. Its construction, however, relies on the assumption of a universal extinction curve and on fixed values of the total-to-selective extinction ...
Dorota M. Skowron, Morgan Fouesneau, Ronald Drimmel, Shourya Khanna   +3 more
doaj   +1 more source

Overlapping Open Clusters NGC 1750 and NGC 1758 behind the Taurus Dark Clouds. II. CCD Photometry in the Vilnius System

Open Astronomy, 2003
Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V., Kazlauskas A., Černiauskas A., Boyle R. P., Vrba F. J., Philip A. G. Davis, Laugalys V., Černis K., Smriglio F.   +8 more
doaj   +1 more source

Enrichment by supernovae in globular clusters with multiple populations

, 2009
The most massive globular cluster in the Milky Way, omega Centauri, is thought to be the remaining core of a disrupted dwarf galaxy, as expected within the model of hierarchical merging.
Kang, Young-Woon, Lee, Jae-Woo, Lee, Jina, Lee, Young-Wook   +3 more
core   +1 more source

Extinction Curves, Distances, and Clumpiness of Diffuse Interstellar Dust Clouds [PDF]

, 1999
We present CCD photometry in UBVRI of several thousand Galactic field stars in four large (>1 degree^2) regions centered on diffuse interstellar dust clouds, commonly referred to as ``cirrus'' clouds (with optical depth A_V less than unity).
Arpad Szomoru, Bertelli G., Bowen D. V., Casertano S., de Vaucouleurs G., de Vaucouleurs G., de Vries C. P., Heiles C., Kiszkurno-Koziej E., Magnani L., Mathis J. S., Puragra Guhathakurta, Stark R., Whittet D. C. B., Wolf M.   +14 more
core   +2 more sources

Observations of Interstellar Reddening in Cygnus and Perseus [PDF]

International Astronomical Union Colloquium, 1965
The Object of the Edinburgh Spectrophotometry Survey is to determine the interstellar extinction law as precisely as possible and to search for intrinsic variations in it. The observations have been extended to early type stars up to a limiting magnitude of 11ṃ0 in regions extending from lII = 50° to lII = 200°.
openaire   +1 more source

Spatially resolved Spectro-photometry of M81: Age, Metallicity and Reddening Maps

, 2000
In this paper, we present a multi-color photometric study of the nearby spiral galaxy M81, using images obtained with the Beijing Astronomical Observatory 60/90 cm Schmidt Telescope in 13 intermediate-band filters from 3800 to 10000{\AA}.
Alloin D., Bessell M. S., Bressan A., Bressan A., Chiosi C., Diaz A., Erdelyi-Mendes M., Fagotto F., Fioc M., Fluks M. A., Fuzhen Cheng, Goerdt A., Haojing Yan, Hong Wu, Hongjun Su, J. Jeff Hester, Jablonka P., Jiansheng Chen, Jin Zhu, Kong X., Licai Deng, Mallik S. V., Ostlin G., Pagel B. E. J., Rogier A. Windhorst, Rui Chen, Schaerer D., Schmitt H. R., Shude Mao, Suijian Xue, Tantalo R., Tinsley B. M., Wean-shun Tsay, Wei-hsin Sun, Weipeng Lin, Wen Xu, Wen-ping Chen, Xiaohui Fan, Xiaoyang Xia, Xu Kong, Xu Zhou, Yong Li, Yong-Ik Byun, Zhaohui Shang, Zhaoji Jiang, Zheng Zheng, Zhenglong Zou, Zhongyuan Zheng, Zhou X.   +48 more
core   +1 more source