Results 91 to 100 of about 3,801 (208)

Proto-Planetary Nebula with the Spitzer Space Telescope

open access: yes, 2010
The transition from Asymptotic Giant Branch star to Planetary Nebula is short-lived and mysterious. Though it lasts only a few thousand years, it is thought to be the time when the asymmetries observed in subsequent phases arise. During this epoch, the star is shrouded in thick clouds of dust and molecular gas; infrared observations are needed to ...
Hart, Alexa   +6 more
openaire   +2 more sources

86th Annual Meeting of the Meteoritical Society (2024)

open access: yes
Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

The Red Supergiant Progenitor of Type II Supernova 2024ggi

open access: yesThe Astrophysical Journal Letters
We present a detailed analysis of the progenitor and its local environment for the recently discovered Type II supernova (SN) 2024ggi at a distance of about 6.7 Mpc, by utilizing the pre-explosion images from the Hubble Space Telescope and Spitzer Space ...
Danfeng Xiang   +10 more
doaj   +1 more source

Quantification of the Age Dependence of Mid-infrared Star Formation Rate Indicators

open access: yesThe Astrophysical Journal
We combine James Webb Space Telescope images of the nearby galaxy NGC 5194 in the hydrogen recombination line Pa α (1.8756 μ m) from the Cycle 1 program JWST-FEAST with 21 μ m dust continuum images from the Cycle 2 Treasury program JWGT to quantify the ...
Daniela Calzetti   +35 more
doaj   +1 more source

The HUSTLE Program: The UV to Near-IR Transmission Spectrum of the Hot Jupiter KELT-7b

open access: yesThe Astronomical Journal
The ultraviolet and optical wavelength ranges have proven to be a key addition to infrared observations of exoplanet atmospheres because they offer unique insights into the properties of clouds and hazes and are sensitive to signatures of disequilibrium ...
C. Gascón   +16 more
doaj   +1 more source

Great Observatories' Unique Views of the Milky Way

open access: yes, 2011
Have a prior knowledge about galaxiesThis image shows the Milky Way under the look of the three largest telescopes of NASA, where each image shows a different view.
National Aeronautics and Space Administration (NASA)   +2 more
core   +1 more source

Modeling Spitzer 3.6 and 4.5 μm Eclipse Depths for the Inflated Hot Jupiter in the Evolved Binary System HD 202772

open access: yesThe Astronomical Journal
As an inflated hot Jupiter orbiting an early-type primary star in the evolved binary HD 202772 system, HD 202772 A b’s presence invites a study of how such a planet forms and evolves. As a prelude to potential atmospheric characterization with the latest
Arthur D. Adams   +11 more
doaj   +1 more source

Star Formation at the Epoch of Reionization with CANUCS: The Ages of Stellar Populations in MACS1149-JD1

open access: yesThe Astrophysical Journal Letters
We present measurements of stellar populations properties of a z = 9.1 gravitationally lensed galaxy MACS1149-JD1 using deep James Webb Space Telescope NIRISS slitless spectroscopy as well as NIRISS and NIRCam imaging from the CAnadian NIRISS Unbiased ...
Maruša Bradač   +17 more
doaj   +1 more source

Great Observatories' Unique Views of the Milky Way

open access: yes, 2016
Have a prior knowledge about galaxiesThis image shows the Milky Way under the look of the three largest telescopes of NASA, where each image shows a different view.
National Aeronautics and Space Administration (NASA)   +2 more
core   +1 more source

Precise Bolometric Luminosities and Effective Temperatures of 23 Late-T and Y Dwarfs Obtained with JWST

open access: yesThe Astrophysical Journal
We present infrared spectral energy distributions of 23 late-type T and Y dwarfs obtained with the James Webb Space Telescope. The spectral energy distributions consist of NIRSpec PRISM and MIRI low-resolution spectrometer spectra covering the ∼1–12 μ m ...
Samuel A. Beiler   +7 more
doaj   +1 more source

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