RR Lyrae variables in M32 and the disk of M31 (2009)
Fiorentino, Giuliana, Monachesi, Antonela, Trager, Scott C., Lauer, Tod R., Saha, Abhijit, Mighell, Kenneth J., ...
We observed two fields near M32 with the Advanced Camera for Surveys/High Resolution Channel (ACS/HRC) on board the Hubble Space Telescope (HST). The main field, F1, is 1.8 arcmin from the center of...
A 500 Parsec Halo Surrounding the Galactic Globular NGC 1851 (2009)
Olszewski, Edward W., Saha, Abhijit, Knezek, Patricia, Subramaniam, Annapurni, De Boer, Thomas, Seitzer, Patrick
Using imaging that shows four magnitudes of main sequence stars, we have discovered that the Galactic globular cluster NGC 1851 is surrounded by a halo that is visible from the tidal radius of 700...
Synthesis and Spectral Studies of CdTeâDendrimer Conjugates (2009)
Ghosh, Srabanti, Saha, Abhijit
In order to couple high cellular uptake and target specificity of dendrimer molecule with excellent optical properties of semiconductor nanoparticles, the interaction of cysteine-capped CdTe quantum...
Photometric Calibrations for 21st Century Science (2009)
Kent, Stephen, Kaiser, Mary Elizabeth, Deustua, Susana E., Smith, J. Allyn, Adelman, Saul, Allam, Sahar, ...
The answers to fundamental science questions in astrophysics, ranging from the history of the expansion of the universe to the sizes of nearby stars, hinge on our ability to make precise measurements...
The Star Formation Histories of Disk and E/S0 Galaxies from Resolved Stars (2009)
Olsen, Knut A. G., Romanowsky, Aaron J., Saha, Abhijit, Skillman, Evan, Williams, Benjamin F., Wyse, Rosemary F. G.
The resolved stellar populations of local galaxies, from which it is possible to derive complete star formation and chemical enrichment histories, provide an important way to study galaxy formation...
A survey of halo RR Lyrae stars (2008)
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. A survey of RR Lyrae stars has been conducted in selected regions of the Galactic...
The HST Key Project on the Extragalactic Distance Scale VI. The Cepheids in NGC925 (2004)
Silbermann, N. A., Harding, Paul, Madore, Barry F., Kennicutt, Robert C. Jr., Saha, Abhijit, Stetson, Peter, ...
We report the detection of Cepheid Variable stars in the barred spiral galaxy NGC925, using the Hubble Space Telescope (HST) Wide Field and Planetary Camera 2 (WFPC2). Twelve V (F555W), four I...
Deep Hubble Space Telescope Imaging of IC 1613 II. The Star Formation History (2003)
Skillman, Evan D., Tolstoy, Eline, Cole, Andrew A., Dolphin, Andrew E., Saha, Abhijit, Gallagher, J. S., ...
We present deep HST WFPC2 imaging of the Local Group dwarf irregular galaxy IC 1613. The photometry is the deepest to date for an isolated dwarf irregular galaxy. The resulting color-magnitude...
Ferrarese, Laura, Silbermann, N. A., Mould, Jeremy R., Stetson, Peter B., Saha, Abhijit, Freedman, Wendy L., ...
We explore the limits of photometric reductions of crowded stellar fields observed with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope. Two photometric procedures, based on...
Prosser, Charles F., Kennicutt, Robert C., Bresolin, Fabio, Saha, Abhijit, Sakai, Shoko, ...
We report on the detection of Cepheids and the first distance measurement to the spiral galaxy NGC 1326-A, a member of the Fornax cluster of galaxies. We have employed data obtained with the Wide...
Sakai, Shoko, Ferrarese, Laura, Kennicutt, Robert C., Graham, John A., Silbermann, N. A., Mould, Jeremy R., ...
The distance to NGC 3319 has been determined from Cepheid variable stars as part of the Hubble Space Telescope Key Project on the Extragalactic Distance Scale. Thirteen and four epochs of...
Stellar Populations at the Center of IC 1613 (1999)
Cole, Andrew A., Tolstoy, Eline, Gallagher, John S., Hoessel, John G., Mould, Jeremy R., Holtzman, Jon A., ...
We have observed the center of the Local Group dwarf irregular galaxy IC 1613 with WFPC2 aboard the Hubble Space Telescope in the F439W, F555W, and F814W filters. We find a dominant old stellar...
Gibson, Brad K., Hughes, Shaun M. G., Stetson, Peter B., Freedman, Wendy L., Kennicutt, Robert C., ...
The distance to NGC 4725 has been derived from Cepheid variables, as part of the Hubble Space Telescope Key Project on the Extragalactic Distance Scale. Thirteen F555W (V) and four F814W (I) epochs...
Ferrarese, Laura, Bresolin, Fabio, Kennicutt, Robert C., Saha, Abhijit, Stetson, Peter B., ...
We report the detection of Cepheids and a new distance to the spiral galaxy NGC 2541, based on data obtained with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope (HST). A...
Rawson, Daya M., Macri, Lucas M., Mould, Jeremy R., Huchra, John P., Freedman, Wendy L., Kennicutt, Robert C., ...
We report on the discovery of Cepheids in the field spiral galaxy NGC 3621, based on observations made with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope (HST). NGC 3621...
A survey of Halo RR Lyrae stars. (1984)
Thesis (Ph. D.)--California Institute of Technology, 1984 (submitted 1983).
A survey of halo RR Lyrae stars (1983)
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. A survey of RR Lyrae stars has been conducted in selected regions of the Galactic...
A survey of halo RR Lyrae stars /--by Abhijit Saha. (1983)
Thesis (Ph. D.)--California Institute of Technology, 1984.