Results 11 to 20 of about 30,917 (231)
Deep HST Photometry of NGC 6388: Age and Horizontal-Branch Luminosity [PDF]
The Astrophysical Journal, 2006 4 pages, 3 colored figures. LOW-RESOLUTION VERSION. The interested reader is strongly encouraged to download the full-resolution preprint from http://www.astro.puc.cl/~mcatelan/N6388-HST ...
M. Catelan +7 more
openalex +8 more sources
HST/FGS Photometry of Planetary Transits of HD 209458 [PDF]
AIP Conference Proceedings, 2004 We present the data, and modeling and analysis results from the photometric monitoring of five planetary transits of HD 209458 using the Fine Guidance Sensors (FGS) onboard the Hubble Space Telescope (HST). We have now included the output from all four FGS photometers in our data reduction and analysis increasing our S/N over our previous results.
A. Schultz
openalex +3 more sources
Candidate LBV stars in galaxy NGC 7793 found via HST photometry + MUSE spectroscopy [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Only about 19 Galactic and 25 extragalactic bonafide luminous blue variables (LBVs) are known to date. This incomplete census prevents our understanding of this crucial phase of massive star evolution which leads to the formation of heavy binary black holes via the classical channel.
Aida Wofford +23 more
openalex +4 more sources
Late-TimeHSTPhotometry of SN 1994I: Hints of Positron Annihilation Energy Deposition [PDF]
Publications of the Astronomical Society of the Pacific, 2008 We present multicolor Hubble Space Telescope (HST) WFPC2 broadband observations of the Type Ic SN 1994I obtained approximately 280 days after maximum light. We measure the brightness of the SN and, relying on the detailed spectroscopic database of SN 1994I, we transform the ground-based photometry obtained at early times to the HST photometric system ...
Alejandro Clocchiatti +14 more
openalex +13 more sources
HST/WFPC2 Photometry in the 30 Doradus Nebula Beyond R136 [PDF]
Symposium - International Astronomical Union, 1999 A photometric study of the 30 Doradus Nebula beyond the core is being carried out by means of HST/WFPC2 archival images, with special attention to the numerous multiple systems and compact clusterings found there.
R. H. Barbá, N. R. Walborn
openalex +2 more sources
Deep HST WFPC2 Photometry of M31's Thick Disk(?) [PDF]
, 2001 18 pages, 12 figures, accepted for publication in The Astronomical Journal, November ...
Ata Sarajedini, Jeffrey Van Duyne
openalex +3 more sources
HST Photometry of the Globular Cluster M4 [PDF]
, 1998 This paper presents a detailed description of the acquisition and processing of a large body of imaging data for three fields in the globular cluster M4 taken with the Wide Field and Planetary Camera 2 aboard the Hubble Space Telescope. Analysis with the ALLFRAME package yielded the deepest photometry yet obtained for this cluster.
Rodrigo Ibata +7 more
openalex +3 more sources
HST-ACS photometry of the isolated dwarf galaxy VV124=UGC 4879 [PDF]
Astronomy & Astrophysics, 2011 We present deep V and I photometry of the isolated dwarf galaxy VV124=UGC4879, obtained from archival images taken with the Hubble Space Telescope - Advanced Camera for Surveys. In the color-magnitude diagrams of stars at distances larger than 40" from the center of the galaxy, we clearly identify for the first time a well-populated old Horizontal ...
M. Bellazzini +3 more
openalex +4 more sources
HST photometry of Globular Clusters in the Sombrero Galaxy
, 2001 We explore the rich globular cluster (GC) system of the nearby Sa galaxy M104, the "Sombrero" (NGC 4594), using archive WFPC2 data. The GC colour distribution is found to be bimodal at the > 99% level, with peaks at V-I = 0.96+/-0.03 and 1.21+/-0.03 (corrected for foreground reddening).
Soeren S. Larsen +2 more
openalex +3 more sources
HST multiband photometry of the globular cluster NGC 6388 [PDF]
, 2003 4 pages, 6 figures, SAIt LaPalma, March 7-11 ...
G. Busso, G. Piotto, S. Cassisi
openalex +4 more sources