Results 41 to 50 of about 89,333 (270)

A Spitzer Space Telescope Infrared Survey of Supernova Remnants in the Inner Galaxy [PDF]

, 2005
Using Infrared Array Camera (IRAC) images at 3.6, 4.5, 5.8, and 8 μm from the GLIMPSE Legacy science program on the Spitzer Space Telescope, we searched for infrared counterparts to the 95 known supernova remnants that are located within Galactic ...
W. Reach, J. Rho, A. Tappe, T. Pannuti, C. Brogan, E. Churchwell, M. Meade, B. Babler, R. Indebetouw, B. Whitney   +9 more
semanticscholar   +1 more source

1I/‘Oumuamua as an N2 Ice Fragment of an exo‐Pluto Surface: I. Size and Compositional Constraints

Journal of Geophysical Research: Planets, Volume 126, Issue 5, May 2021., 2021
Abstract The origin of the interstellar object 1I/‘Oumuamua has defied explanation. We perform calculations of the non‐gravitational acceleration that would be experienced by bodies composed of a range of different ices and demonstrate that a body composed of N2 ice would satisfy the available constraints on the non‐gravitational acceleration, size ...
Alan P. Jackson, Steven J. Desch
wiley   +1 more source

ExploreNEOs. II. The Accuracy of the Warm Spitzer Near-Earth Object Survey [PDF]

, 2011
We report on results of observations of near-Earth objects (NEOs) performed with the NASA Spitzer Space Telescope as part of our ongoing (2009-2011) Warm Spitzer NEO survey ("ExploreNEOs"), the primary aim of which is to provide sizes and albedos of some
Bhattacharya, B., Bottke, W. F., Chesley, S., Delbo, M., Emery, J. P., Fazio, G., Harris, A. W., Hora, J. L., Mainzer, A., Mommert, M., Mueller, M., Penprase, B., Smith, H. A., Spahr, T. B., Stansberry, J. A., Thomas, C. A., Trilling, D. E.   +16 more
core   +7 more sources

1I/‘Oumuamua as an N2 Ice Fragment of an Exo‐Pluto Surface II: Generation of N2 Ice Fragments and the Origin of ‘Oumuamua

Journal of Geophysical Research: Planets, Volume 126, Issue 5, May 2021., 2021
Abstract The origin of the interstellar object 1I/‘Oumuamua has defied explanation. In a companion paper (Jackson & Desch, 2021), we show that a body of N2 ice with axes 45 m × 44 m × 7.5 m at the time of observation would be consistent with its albedo, nongravitational acceleration, and lack of observed CO or CO2 or dust.
S. J. Desch, A. P. Jackson
wiley   +1 more source

A Spitzer Space Telescope Study of Disks in the Young σ Orionis Cluster [PDF]

, 2007
We report new Spitzer Space Telescope observations, using the IRAC and MIPS instruments, of the young (~3 Myr) σ Orionis cluster. We identify 336 stars as members of the cluster, using optical and near-infrared color-magnitude diagrams.
Jesús Hernández, J. Hernández, L. Hartmann, T. Megeath, R. Gutermuth, J. Muzerolle, N. Calvet, A. K. Vivas, C. Briceño, L. Allen, J. Stauffer, E. Young, G. Fazio   +12 more
semanticscholar   +1 more source

Aerosols in Exoplanet Atmospheres

Journal of Geophysical Research: Planets, Volume 126, Issue 4, April 2021., 2021
Abstract Observations of exoplanet atmospheres have shown that aerosols, like in the solar system, are common across a variety of temperatures and planet types. The formation and distribution of these aerosols are inextricably intertwined with the composition and thermal structure of the atmosphere.
Peter Gao, Hannah R. Wakeford, Sarah E. Moran, Vivien Parmentier   +3 more
wiley   +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

Focal plane calibration of the Spitzer space telescope [PDF]

IEEE Control Systems, 2009
The Spitzer space telescope (Spitzer) is currently NASA's largest and most sensitive infrared (IR) telescope in space. Spitzer's focal plane carries detectors from three science instruments, namely, the infrared array camera (IRAC), the infrared spectrograph (IRS), and the multiband imaging photometer for Spitzer (MIPS).
Bayard, David S., Kang, Bryan H., Brugarolas, Paul B., Boussalis, Dhemetrios   +3 more
openaire   +4 more sources

CME Magnetic Structure and IMF Preconditioning Affecting SEP Transport

Space Weather, Volume 19, Issue 4, April 2021., 2021
Abstract Coronal mass ejections (CMEs) and solar energetic particles (SEPs) are two phenomena that can cause severe space weather effects throughout the heliosphere. The evolution of CMEs, especially in terms of their magnetic structure, and the configuration of the interplanetary magnetic field (IMF) that influences the transport of SEPs are currently
Erika Palmerio, Emilia K. J. Kilpua, Olivier Witasse, David Barnes, Beatriz Sánchez‐Cano, Andreas J. Weiss, Teresa Nieves‐Chinchilla, Christian Möstl, Lan K. Jian, Marilena Mierla, Andrei N. Zhukov, Jingnan Guo, Luciano Rodriguez, Patrick J. Lowrance, Alexey Isavnin, Lucile Turc, Yoshifumi Futaana, Mats Holmström   +17 more
wiley   +1 more source

Exploring the Distant Universe With the Spitzer Space Telescope [PDF]

AIP Conference Proceedings, 2004
The infrared Spitzer Space Telescope is the last of NASA’s Great Observatories. Highlights of the first results from the Infrared Spectrograph (IRS) Extragalactic Team are given. The main focus of this paper is a demonstration of the unprecedented sensitivity of the IRS, which makes observations of distant, dust enshrouded galaxies possible.
Higdon, Sarah J. U., Higdon, James L., Weedman, Dan, Houck, James R., Soifer, B. T., Armus, Lee, Charmandaris, Vassilis, Herter, Terry L.   +7 more
openaire   +4 more sources