The Astrophysical Journal LettersWe present high-definition observations with the James Webb Space Telescope (JWST) of >1000 Cepheids in a geometric anchor of the distance ladder, NGC 4258, and in five hosts of eight Type Ia supernovae, a far greater sample than previous studies with ...
Adam G. Riess +9 more
doaj +1 more source
ALMA Lensing Cluster Survey: $HST$ and $Spitzer$ Photometry of 33 Lensed Fields Built with CHArGE [PDF]
, 2022 Vasily Kokorev +32 more
openalex +1 more source
Self-consistent Combined HST, K-band, and Spitzer Photometric Catalogs of the BUFFALO Survey Fields
The Astrophysical Journal Supplement SeriesThis article presents new astronomical source catalogs using data from the BUFFALO Survey. These catalogs contain detailed information for over 100,000 astronomical sources in the six BUFFALO clusters: A370, A2744, AS1063, MACS 0416, MACS 0717, and MACS ...
Amanda Pagul +16 more
doaj +1 more source
The Isaac Newton Telescope Monitoring project: Stellar population in the IC 10 dwarf irregular galaxy [PDF]
Iranian Journal of Astronomy and Astrophysics, 2019 We have conducted an optical monitoring survey of IC 10 dwarf irregular galaxy in the Local Group, using the Isaac Newton Telescope (INT) with the wide-field camera (WFC), to identify the Asymptotic Giant Branch stars (AGBs).
Mahtab Gholami, Mohammad Taghi Mirtorabi
doaj +1 more source
New Extinction and Mass Estimates from Optical Photometry of the Very Low Mass Brown Dwarf Companion CT Chamaeleontis B with the Magellan AO System [PDF]
, 2015 We used the Magellan adaptive optics (MagAO) system and its VisAO CCD camera to image the young low mass brown dwarf companion CT Chamaeleontis B for the first time at visible wavelengths. We detect it at r', i', z', and Ys.
Bailey, Vanessa +11 more
core +2 more sources
A Near-infrared Survey of Candidate Haumea Family Members
The Astronomical JournalThe Haumea family is the only known dynamical family in the trans-Neptunian region. To date, 10 family members have been unambiguously identified using near-infrared (NIR) spectral or photometric data in combination with their strong dynamical proximity ...
Benjamin C. N. Proudfoot +7 more
doaj +1 more source
Joint Survey Processing. III. Compact Oddballs in the COSMOS Field—Little Red Dots and Transients
The Astrophysical JournalWe present the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) G800L grism spectroscopy observation of the faint active galactic nuclei (AGN) candidates in the Cosmic Evolution Survey field at redshift of 6 selected by the point-source ...
Yu-Heng Lin +9 more
doaj +1 more source
Timing the r-process Enrichment of the Ultra-faint Dwarf Galaxy Reticulum II
The Astrophysical Journal, 2023 The ultra-faint dwarf galaxy Reticulum II (Ret II) exhibits a unique chemical evolution history, with ${72}_{-12}^{+10}$ % of its stars strongly enhanced in r -process elements.
Joshua D. Simon +67 more
doaj +1 more source
2MASS NIR photometry for 693 candidate globular clusters in M31 and the Revised Bologna Catalogue
, 2003 We have identified in the 2MASS database 693 known and candidate globular clusters in M31. The 2MASS J,H,K magnitudes of these objects have been transformed to the same homogeneous photometric system of existing near infrared photometry of M31 globulars,
Aurière +46 more
core +1 more source
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