Results 31 to 40 of about 32,530 (259)

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

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

A Multiwavelength Classification and Study of Red Supergiant Candidates in NGC 6946

The Astrophysical Journal, 2023
We have combined resolved stellar photometry from Hubble Space Telescope (HST), Spitzer, and Gaia to identify red supergiant (RSG) candidates in NGC 6946, based on their colors, proper motions, visual morphologies, and spectral energy distributions.
Jared R. Johnson, Brad Koplitz, Benjamin F. Williams, Julianne J. Dalcanton, Andrew Dolphin, Léo Girardi   +5 more
doaj   +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

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

Spitzer IRS Spectra of Optically Faint Infrared Sources with Weak Spectral Features [PDF]

, 2006
Spectra have been obtained with the low-resolution modules of the Infrared Spectrograph (IRS) on the Spitzer Space Telescope (Spitzer) for 58 sources having f$_{\nu}$(24 micron) > 0.75 mJy.
Armus, L., Bian, C., Brown, M. J. I., Desai, V., Dey, A., Eisenhardt, P., Hao, Lei, Higdon, J. L., Higdon, S. J. U., Houck, J. R., Jannuzi, B. T., LeFloc'h, E., Rieke, M., Soifer, B. T., Teplitz, H., Thompson, D., Weedman, D. W., Willner, S. P.   +17 more
core   +2 more sources

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

Hot Jupiters: Origins, Structure, Atmospheres

Journal of Geophysical Research: Planets, Volume 126, Issue 3, March 2021., 2021
Abstract We provide a brief review of many aspects of the planetary physics of hot Jupiters. Our aim is to cover most of the major areas of current study while providing the reader with additional references for more detailed follow‐up. We first discuss giant planet formation and subsequent orbital evolution via disk‐driven torques or dynamical ...
Jonathan J. Fortney, Rebekah I. Dawson, Thaddeus D. Komacek   +2 more
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   +4 more sources

A survey of Karin cluster asteroids with the Spitzer Space Telescope [PDF]

Icarus, 2009
Abstract The Karin cluster is one of the youngest known families of main-belt asteroids, dating back to a collisional event only 5.8 ± 0.2 Myr ago. Using the Spitzer Space Telescope we have photometrically sampled the thermal continua (3.5–22 μm) of 17 Karin cluster asteroids of different sizes, down to the smallest members discovered so ...
Harris, A.W., Mueller, M., Lisse, C.M., Cheng, A.F.   +3 more
openaire   +3 more sources