Results 91 to 100 of about 89,333 (270)
The Astronomical JournalTo identify long-period variable (LPV) stars in IC 10—the nearest starburst galaxy of the Local Group—we conducted an optical monitoring survey using the 2.5 m Isaac Newton Telescope with the wide-field camera (WFC) in the i band and V band from 2015 to ...
Mahtab Gholami +9 more
doaj +1 more source
The Spitzer view of the extragalactic universe [PDF]
, 2008 The Spitzer Space Telescope was launched in August 2003. Scientists from around the world have applied its orders-of-magnitude gain in imaging and spectroscopic capability to a wide array of topics in extragalactic research.
Helou, George +2 more
core +1 more source
A Post‐Launch Summary of the Science of NASA's Psyche Mission
AGU Advances, Volume 5, Issue 2, April 2024.Abstract Astronomical observations indicate that asteroid (16) Psyche is a large, high‐density (likely >3,400 kg·m−3), metal‐rich (30–55 vol. %) asteroid. Psyche may be remnant core material or it could be a primordial, undifferentiated metal‐rich object.
Steven D. Dibb +15 more
wiley +1 more source
Knot a Bad Idea: Testing BLISS Mapping for Spitzer Space Telescope Photometry [PDF]
, 2016 Much of transiting exoplanet science relies on high-precision photometry. The current generation of instruments can exhibit sensitivity variations greater than the astrophysical signals. For the InfraRed Array Camera (IRAC) on the Spitzer Space Telescope,
J. Schwartz, Nicolas B. Cowan
semanticscholar +1 more source
How many Vesta‐like bodies existed in the asteroid belt?
Meteoritics &Planetary Science, Volume 59, Issue 4, Page 878-894, April 2024.Abstract Asteroid 4 Vesta is typically thought to be the parent body of the HED (howardite, eucrite, and diogenite) meteorites due to spectral similarities. The discovery of asteroids far from Vesta with HED‐like spectra like (1459) Magnya and HED‐like meteorites (e.g., NWA 011) with anomalous oxygen isotopic values compared to typical HEDs is evidence
T. H. Burbine +3 more
wiley +1 more source
The Astrophysical JournalWe present an imaging survey of the Spitzer I star-forming region in NGC 6822 conducted with the NIRCam and MIRI instruments on board JWST. Located at a distance of 490 kpc, NGC 6822 is the nearest non-interacting low-metallicity (∼0.2 Z _⊙ ) dwarf ...
Laura Lenkić +10 more
doaj +1 more source
Infrared Imaging of Planetary Nebulae from the Ground Up
, 2006 New ground-based telescopes and instruments, the return of the NICMOS instrument on the Hubble Space Telescope (HST), and the recent launch of the Spitzer Space Telescope have provided new tools that are being utilized in the study of planetary nebulae ...
Hora, Joseph L.
core +2 more sources
The Spitzer Space Telescope Extragalactic First Look Survey: 24 μm Data Reduction, Catalog, and Source Identification [PDF]
, 2006 We present the reduction of the 24 μm data obtained during the first cosmological survey performed by the Spitzer Space Telescope. Images of a region of sky at moderately high Galactic latitude (l = 88.°3, b = +34.°9) were obtained on 2003 December 9-11.
D. Fadda +22 more
semanticscholar +1 more source
Heavy Elements and Electromagnetic Transients from Neutron Star Mergers
Annalen der Physik, Volume 536, Issue 2, February 2024.Astro‐(physics) has made major leaps forward through the combined information provided by both gravitational waves and electromagnetic emission from the first detected neutron star merger event. This review provides an up‐to‐date overview of today's understanding of neutron star mergers and their electromagnetic emission and it discusses possible ...
Stephan Rosswog, Oleg Korobkin
wiley +1 more source
The Astrophysical Journal Letters, 2023 We report direct observational evidence for a latitudinal dependence of dust cloud opacity in ultracool dwarfs, indicating that equatorial latitudes are cloudier than polar latitudes.
Genaro Suárez +4 more
doaj +1 more source