Results 51 to 60 of about 53,340 (257)
The Astronomical Journal, 2023 Previous studies of the exoplanet LTT 1445Ac concluded that the light curve from the Transiting Exoplanet Survey Satellite (TESS) was consistent with both grazing and nongrazing geometries. As a result, the radius and hence density of the planet remained
Emily K. Pass +8 more
doaj +1 more source
A 1.3% distance to M33 from HST Cepheid photometry
, 2023 We present a low-dispersion period-luminosity relation (PL) based on 154 Cepheids in Messier 33 (M33) with Hubble Space Telescope (HST) photometry from the PHATTER survey. Using high-quality ground-based light curves, we recover Cepheid phases and amplitudes for multi-epoch HST data and we perform template fitting to derive intensity-averaged mean ...
Breuval, Louise +9 more
openaire +3 more sources
HST photometry of the trapezium cluster
The Astrophysical Journal, 1994 We have obtained images of 11 fields in the Trapezium cluster with the Planetary Camera (PC) of the Hubble Space Telescope (HST) in order to extend Herbig & Terndrup's (1986) study of this prototype, dense embedded cluster to fainter magnitudes than is possible from the ground.
Lee Hartmann +6 more
openaire +2 more sources
Synthetic photometry of OB star clusters with stochastically sampled IMFs: analysis of models and HST observations [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT We present a pilot library of synthetic NUV, U, B, V, and I photometry of star clusters with stochastically sampled IMFs and ionized gas for initial masses, Mi = 103, 104, and 105 M⊙; t = 1, 3, 4, and 8 Myr; Z = 0.014 and Z = 0.002; and log(US) = −2 and −3.
Rogelio Orozco-Duarte +15 more
openalex +7 more sources
HST Photometry of the Fornax dSph Galaxy: cluster 4 and its field
, 1999 34 pages, 13 figures, accepted for publications on Astronomical Journal.
R. Buonanno +5 more
openalex +4 more sources
Ultraviolet and visible photometry of asteroid (21) Lutetia using the Hubble Space Telescope [PDF]
, 2010 The asteroid (21) Lutetia is the target of a planned close encounter by the Rosetta spacecraft in July 2010. To prepare for that flyby, Lutetia has been extensively observed by a variety of astronomical facilities. We used the Hubble Space Telescope (HST)
A'Hearn +43 more
core +2 more sources
A Photometric Survey of Globular Cluster Systems in Brightest Cluster Galaxies
The Astrophysical Journal Supplement Series, 2023 Hubble Space Telescope imaging for 26 giant early-type galaxies, all drawn from the MAST archive, is used to carry out photometry of their surrounding globular cluster (GC) systems. Most of these targets are Brightest Cluster Galaxies and their distances
William E. Harris
doaj +1 more source
Uncloaking globular clusters in the inner Galaxy [PDF]
, 2011 Extensive photometric studies of the globular clusters located towards the center of the Milky Way have been historically neglected. The presence of patchy differential reddening in front of these clusters has proven to be a significant obstacle to their
Alonso-García, Javier +6 more
core +2 more sources
The Astrophysical Journal, 2023 We present uniformly measured stellar metallicities of 463 stars in 13 Milky Way (MW) ultra-faint dwarf galaxies (UFDs; M _V = −7.1 to −0.8) using narrowband CaHK (F395N) imaging taken with the Hubble Space Telescope.
Sal Wanying Fu +12 more
doaj +1 more source
Constraints on Cosmological Models from Hubble Space Telescope Observations of High-z Supernovae [PDF]
, 1997 We have coordinated Hubble Space Telescope photometry with ground-based discovery for three supernovae: two SN Ia near z~0.5 (SN 1997ce, SN 1997cj) and a third event at z=0.97 (SN 1997ck).
A. Clocchiatti +21 more
core +2 more sources