Results 81 to 90 of about 60,149 (264)

MIR Spectra and Analysis of Jovian Trojan Asteroids

The Planetary Science Journal, 2023
Jovian Trojan asteroids make up a large group of primitive bodies that populate Jupiter's L4 and L5 Lagrange points. The Trojans’ dynamics and composition carry insight into the formation mechanisms that shaped our solar system. Mid-infrared (MIR; 5–35 μ
Audrey C. Martin, Joshua P. Emery
doaj   +1 more source

NEW DEBRIS DISKS AROUND YOUNG, LOW-MASS STARS DISCOVERED WITH THE SPITZER SPACE TELESCOPE [PDF]

, 2009
We present 24 μm and 70 μm Multiband Imaging Photometer for Spitzer (MIPS) observations of 70 A through M-type dwarfs with estimated ages from 8 Myr to 1.1 Gyr, as part of a Spitzer guaranteed time program, including a re-analysis of some previously ...
P. Plavchan, Michael W. Werner, Christine Chen, K. Stapelfeldt, K. Su, J. Stauffer, I. Song   +6 more
semanticscholar   +1 more source

Infrared Fluxes and Lightcurves of Near-Earth Objects: The Full Spitzer Sample

The Astronomical Journal
The IRAC camera on the Spitzer Space Telescope observed 2175 near-Earth objects (NEOs) during its Warm Mission phase, primarily in three large surveys, and also in a small number of a dedicated projects.
Joseph L. Hora, Alicia J. Allen, David E. Trilling, Howard A. Smith, Andrew McNeill   +4 more
doaj   +1 more source

KMT-2018-BLG-0029Lb and OGLE-2019-BLG-0960Lb: Mass Measurements for Two Super-Earth Microlensing Planets

The Astronomical Journal
KMT-2018-BLG-0029Lb and OGLE-2019-BLG-0960Lb were the lowest mass-ratio microlensing planets at the time of discovery. For both events, microlensing parallax measurements from the Spitzer Space Telescope implied lens systems that were more distant and ...
Keming Zhang, Sean K. Terry, Joshua S. Bloom, B. Scott Gaudi, Jessica R. Lu   +4 more
doaj   +1 more source

Spitzer Space Telescope Spectroscopy of Ices toward Low-Mass Embedded Protostars [PDF]

, 2004
Sensitive 5-38 μm Spitzer Space Telescope and ground-based 3-5 μm spectra of the embedded low-mass protostars B5 IRS1 and HH 46 IRS show deep ice absorption bands superposed on steeply rising mid-infrared continua.
A. Boogert, K. Pontoppidan, F. Lahuis, J. Jørgensen, J. Augereau, G. Blake, T. Brooke, Joanna M. Brown, C. Dullemond, N. Evans, Vincent, Geers, M. Hogerheijde, J. Kessler-Silacci, C. Knez, P. Morris, Alberto, Noriega-Crespo, F. Schöier, E. F. Dishoeck, L. Allen, P. Harvey, W. David, Koerner, L. Mundy, P. Myers, D. Padgett, A. Sargent, K. Stapelfeldt   +28 more
semanticscholar   +1 more source

SpitzerSpace Telescope observations of bilobate comet 8P/Tuttle [PDF]

Astronomy & Astrophysics, 2019
Context.Comet 8P/Tuttle is a nearly isotropic comet whose physical properties are poorly known and might be different from those of ecliptic comets owing to their different origin. Two independent observations have shown that 8P/Tuttle has a bilobate nucleus.Aims.Our goal is to determine the physical properties of the nucleus (size, shape, thermal ...
Groussin, O., Lamy, Philippe, Kelley, M. S. P., Toth, I., Jorda, Laurent, Fernandez, Y., Weaver, H.   +6 more
openaire   +3 more sources

Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph: Equatorial Latitudes in L Dwarf Atmospheres Are Cloudier

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, Johanna M. Vos, Stanimir Metchev, Jacqueline K. Faherty, Kelle Cruz   +4 more
doaj   +1 more source

THE SPITZER SPACE TELESCOPE SURVEY OF THE ORION A AND B MOLECULAR CLOUDS. II. THE SPATIAL DISTRIBUTION AND DEMOGRAPHICS OF DUSTY YOUNG STELLAR OBJECTS [PDF]

, 2015
We analyze the spatial distribution of dusty young stellar objects (YSOs) identified in the Spitzer Survey of the Orion Molecular clouds, augmenting these data with Chandra X-ray observations to correct for incompleteness in dense clustered regions.
S. T. Megeath, S. T. Megeath, R. Gutermuth, J. Muzerolle, E. Kryukova, J. Hora, L. Allen, K. Flaherty, L. Hartmann, P. Myers, J. Pipher, J. Stauffer, E. Young, G. Fazio   +13 more
semanticscholar   +1 more source

JWST-TST DREAMS: A Precise Water Abundance for Hot Jupiter WASP-17b from the NIRISS SOSS Transmission Spectrum

The Astronomical Journal
Water has proven to be ubiquitously detected in near-infrared (NIR) transmission spectroscopy observations of hot Jupiter atmospheres, including WASP-17b.
Dana R. Louie, Elijah Mullens, Lili Alderson, Ana Glidden, Nikole K. Lewis, Hannah R. Wakeford, Natasha E. Batalha, Knicole D. Colón, Amélie Gressier, Douglas Long, Michael Radica, Néstor Espinoza, Jayesh Goyal, Ryan J. MacDonald, Erin M. May, Sara Seager, Kevin B. Stevenson, Jeff A. Valenti, Natalie H. Allen, Caleb I. Cañas, Ryan C. Challener, David Grant, Jingcheng Huang, Zifan Lin, Daniel Valentine, Mark Clampin, Marshall Perrin, Laurent Pueyo, Roeland P. van der Marel, C. Matt Mountain   +29 more
doaj   +1 more source

Temporal Changes in the Infrared Spectra of Magellanic Carbon Stars

Galaxies
The Medium-Resolution Spectrometer on the Mid-Infrared Instrument on the JWST obtained spectra of three carbon stars in the Large Magellanic Cloud. Two of the spectra differ significantly from spectra obtained ∼16–19 years earlier with the Infrared ...
G. C. Sloan, K. E. Kraemer, B. Aringer, J. Cami, K. Eriksson, S. Höfner, E. Lagadec, M. Matsuura, I. McDonald, E. Montiel, R. Sahai, A. A. Zijlstra   +11 more
doaj   +1 more source