Portal:Radiation astronomy/Resource/42
Planets[edit | edit source]
When the overwhelming radiation from the star GJ 758 is reduced and the star itself eclipsed by a disk, secondary radiation sources appear in the background. These are labeled B and C?.
Subsequent observations with the Subaru Telescope revealed C? to be a background star rather than an object in orbit around GJ 758.
"The source tentatively referred to as “GJ 758 C” [follows] the background star track".[1]
"GJ 758 B exhibits common proper motion with its parent star as well as systematic orbital motion towards the northwest, whereas all other point-sources follow the expected trajectory for background stars (solid arrows). The object referred to as “GJ 758 C” [...] is unambiguously identified as a background star (motion highlighted by dashed blue arrows). The grey plus signs are 1σ error bars. The circle marked as “PSF” shows the size of the resolution element in H-band on [High Contrast Instrument for the Subaru Next Generation Adaptive Optics] HiCIAO."[1]
- ↑ 1.0 1.1 M. Janson, J. Carson, C. Thalmann, M. W. McElwain, M. Goto, J. Crepp, J. Wisniewski, L. Abe, W. Brandner, A. Burrows, S. Egner, M. Feldt, C. A. Grady, T. Golota, O. Guyon, J. Hashimoto, Y. Hayano, M. Hayashi, S. Hayashi, T. Henning, K. W. Hodapp, M. Ishii, M. Iye, R. Kandori, G. R. Knapp, T. Kudo, N. Kusakabe, M. Kuzuhara, T. Matsuo, S. Mayama, S. Miyama, J.-I. Morino, A. Moro-Mart ́ın, T. Nishimura, T.-S. Pyo, E. Serabyn, H. Suto, R. Suzuki, M. Takami, N. Takato, H. Terada, B. Tofflemire, D. Tomono, E. L. Turner, M. Watanabe, T. Yamada, H. Takami, T. Usuda, M. Tamura (February 2011). "Near-Infrared Multi-Band Photometry of the Substellar Companion GJ 758 B". The Astrophysical Journal 728 (2): 6. doi:10.1088/0004-637X/728/2/85. http://adsabs.harvard.edu/abs/2011ApJ...728...85J. Retrieved 2014-09-12.