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Browsing by Author "Becklin, E. E."

Browsing by Author "Becklin, E. E."

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  • Gas and Dust Associated with the Strange, Isolated Star BP Piscium 
    Zuckerman, B.; Melis, C.; Song, Inseok; Meier, David S.; Perrin, Marshall D.; Macintosh, Bruce; Marois, Christian; Weinberger, Alycia J.; Rhee, Joseph H.; Graham, James R.; Kastner, Joel H.; Palmer, Patrick; Forveille, T.; Becklin, E. E.; Wilner, David J.; Barman, T. S.; Marcy, G. W.; Bessell, M. S. (2008)
  • Multiwavelength Variability of Sagittarius A* in 2019 July 
    Boyce, H.; Haggard, D.; Witzel, G.; Fellenberg, S. von; Willner, S. P.; Becklin, E. E.; Do, T.; Eckart, A.; Fazio, G. G.; Gurwell, M. A.; Hora, J. L.; Markoff, S.; Morris, M. R.; Neilsen, J.; Nowak, M.; Smith, H. A.; Zhang, S. (2022)
    We report a timing analysis of near-infrared (NIR), X-ray, and submillimeter data during a 3 day coordinated campaign observing Sagittarius A*. Data were collected at 4.5 µm with the Spitzer Space Telescope, 2-8 keV with ...
  • Simultaneous X-Ray and Infrared Observations of Sagittarius A*'s Variability 
    Boyce, H.; Haggard, D.; Witzel, G.; Willner, Steven P.; Neilsen, J.; Hora, Joseph L.; Markoff, S.; Ponti, G.; Baganoff, F.; Becklin, E. E.; Fazio, Giovanni G.; Lowrance, P.; Morris, M. R.; Smith, H. A. (2019)
    Emission from Saggitarius A* is highly variable at both X-ray and infrared (IR) wavelengths. Observations over the last ~20 yr have revealed X-ray flares that rise above a quiescent thermal background about once per day, ...
  • Spitzer/IRAC Observations of the Variability of Sgr A* and the Object G2 at 4.5 ?m 
    Hora, Joseph L.; Witzel, G.; Ashby, Matthew L. N.; Becklin, E. E.; Carey, S.; Fazio, Giovanni G.; Ghez, A.; Ingalls, J.; Meyer, L.; Morris, M. R.; Smith, H. A.; Willner, Steven P. (2014)
    We present the first detection from the Spitzer Space Telescope of 4.5 ?m variability from Sgr A*, the emitting source associated with the Milky Way's central black hole. The >23 hr continuous light curve was obtained ...
  • 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 
    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. (2018)
    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 data set ...

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