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TRAPPIST-1: Global Results of the Spitzer Exploration Science Program {\it Red Worlds}

Publikováno v: A&A 640, A112 (2020)

With more than 1000 hours of observation from Feb 2016 to Oct 2019, the Spitzer Exploration Program Red Worlds (ID: 13067, 13175 and 14223) exclusively targeted TRAPPIST-1, a nearby (12pc) ultracool dwarf star orbited by seven transiting Earth-sized

Externí odkaz: http://arxiv.org/abs/2006.13826

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Multiwavelength Light Curves of Two Remarkable Sagittarius A* Flares

Autor: Fazio, G. G., Hora, J. L., Witzel, G., Willner, S. P., Ashby, M. L. N., Baganoff, F., Becklin, E., Carey, S., Haggard, D., Gammie, C., Ghez, A., Gurwell, M. A., Ingalls, J., Marrone, D., Morris, M. R., Smith, H. A.

Sgr A*, the supermassive black hole (SMBH) at the center of our Milky Way Galaxy, is known to be a variable source of X-ray, near-infrared (NIR), and submillimeter (submm) radiation and therefore a prime candidate to study the electromagnetic radiati

Externí odkaz: http://arxiv.org/abs/1807.07599

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Variability Timescale and Spectral Index of Sgr A* in the Near Infrared: Approximate Bayesian Computation Analysis of the Variability of the Closest Supermassive Black Hole

Autor: Witzel, G., Martinez, G., Hora, J., Willner, S. P., Morris, M. R., Gammie, C., Becklin, E. E., Ashby, M. L. N., Baganoff, F., Carey, S., Do, T., Fazio, G. G., Ghez, A., Glaccum, W. J., Haggard, D., Herrero-Illana, R., Ingalls, J., Narayan, R., Smith, H. A.

Sagittarius A* (Sgr A*) is the variable radio, near-infrared (NIR), and X-ray source associated with accretion onto the Galactic center black hole. We present an analysis of the most comprehensive NIR variability dataset of Sgr A* to date: eight 24-h

Externí odkaz: http://arxiv.org/abs/1806.00479

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Spitzer Space Telescope Mid-IR Light Curves of Neptune

Autor: Stauffer, J. R., Marley, M. S., Gizis, J. E., Rebull, L. M., Carey, S. J., Krick, J., Ingalls, J. G., Lowrance, P., Glaccum, W., Kirkpatrick, J. D., Simon, A. A., Wong, M. H.

We have used the Spitzer Space Telescope in February 2016 to obtain high cadence, high signal-to-noise, 17-hour duration light curves of Neptune at 3.6 and 4.5 $\mu$m. The light curve duration was chosen to correspond to the rotation period of Neptun

Externí odkaz: http://arxiv.org/abs/1608.07198

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Spitzer IRAC Sparsely Sampled Phase Curve of the Exoplanet WASP-14b

Autor: Krick, J. E., Ingalls, J., Carey, S., von Braun, K., Kane, S. R., Ciardi, D., Plavchan, P., Wong, I., Lowrance, P.

Motivated by a high Spitzer IRAC oversubscription rate, we present a new technique of randomly and sparsely sampling phase curves of hot Jupiters. Snapshot phase curves are enabled by technical advances in precision pointing as well as careful charac

Externí odkaz: http://arxiv.org/abs/1603.03383

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Spitzer/IRAC Observations of the Variability of Sgr A* and the Object G2 at 4.5 microns

Autor: Hora, J. L., Witzel, G., Ashby, M. L. N., Becklin, E. E., Carey, S., Fazio, G. G., Ghez, A., Ingalls, J., Meyer, L., Morris, M. R., Smith, H. A., Willner, S. P.

We present the first detection from the Spitzer Space Telescope of 4.5 micron variability from Sgr A*, the emitting source associated with the Milky Way's central black hole. The >23 hour continuous light curve was obtained with the IRAC instrument i

Externí odkaz: http://arxiv.org/abs/1408.1951

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