Results 101 to 110 of about 1,832,653 (172)

Dynamical and Atmospheric Characterization of the Substellar Companion HD 33632 Ab from Direct Imaging, Astrometry, and Radial-velocity Data

The Astrophysical Journal
We present follow-up SCExAO/CHARIS H- and K -band ( R  ∼ 70) high-contrast integral field spectroscopy and Keck/NIRC2 photometry of directly imaged brown dwarf companion HD 33632 Ab and new radial-velocity data for the system from the SOPHIE spectrograph,
Mona El Morsy, Thayne Currie, Danielle Bovie, Masayuki Kuzuhara, Brianna Lacy, Yiting Li, Taylor Tobin, Timothy D. Brandt, Jeffrey Chilcote, Olivier Guyon, Tyler D. Groff, Julien Lozi, Sebastien Vievard, Vincent Deo, Nour Skaf, Francois Bouchy, Isabelle Boisse, Erica Dykes, N. Jeremy Kasdin, Motohide Tamura   +19 more
doaj   +1 more source

Coronagraphic phase diversity: performance study and laboratory demonstration

, 2013
International audienceContext. The final performance of current and future instruments dedicated to exoplanet detection and characterization (such as SPHERE on the European Very Large Telescope, GPI on Gemini North, or future instruments on Extremely ...
L. M. Mugnier, Sauvage, J. -F., Mugnier, L. M., J.-F. Sauvage, B. Paul, Paul, B.   +5 more
core   +1 more source

Deepest Limits on Scattered Light Emission from the Epsilon Eridani Inner Debris Disk with HST/STIS

The Astronomical Journal
Epsilon Eridani is one of the first debris disk systems detected by the Infrared Astronomical Satellite. However, the system has thus far eluded detection in scattered light with no components having been directly imaged.
Sai Krishanth P. M., Ewan S. Douglas, Ramya M. Anche, Justin Hom, Kerri L. Cahoy, John H. Debes, Hannah Jang-Condell, Isabel Rebollido, Bin B. Ren, Christopher C. Stark, Robert Thompson, Yinzi Xin   +11 more
doaj   +1 more source

New HST data and modeling reveal a massive planetesimal collision around Fomalhaut. [PDF]

Proc Natl Acad Sci U S A, 2020
Gáspár A, Rieke GH.
europepmc   +1 more source

Radiation-driven acceleration in the expanding WR140 dust shell. [PDF]

Nature, 2022
Han Y, Tuthill PG, Lau RM, Soulain A.
europepmc   +1 more source

Tip-tilt estimation and correction using FQPM coronagraphic images

, 2012
Context. Direct imaging of exoplanets located a few AU from their hosting star requires angular resolution at the diffraction limit of large telescopes and a contrast level in the image of 10^5 to 10^10.
Baudoz, P., G. Rousset, Galicher, R., Rousset, G., P. Baudoz, Mas, M., M. Mas, R. Galicher   +7 more
core   +1 more source

Searching for Planets around Altair with JWST/NIRcam

The Astronomical Journal
Altair ( α Aql) is one of the nearest stars to the Sun at 5.13 pc and its age has recently been revised to 88 ± 10 Myr, making it one of the youngest stars in the solar neighborhood.
Tiffany Meshkat, Charles Beichman, Jorge Llop-Sayson, Geoffrey Bryden, Alexandra Z. Greenbaum, Eric E. Mamajek, Marie Ygouf, Julien Girard, Jarron Leisenring, Aniket Sanghi, Marshall Perrin, Michael Meyer, Laurent Pueyo, William Balmer, András Gáspár, Klaus Hodapp   +15 more
doaj   +1 more source

Adaptive optics for high-resolution imaging. [PDF]

Nat Rev Methods Primers, 2021
Hampson KM, Turcotte R, Miller DT, Kurokawa K, Males JR, Ji N, Booth MJ.   +6 more
europepmc   +1 more source

Earth-affecting solar transients: a review of progresses in solar cycle 24. [PDF]

Prog Earth Planet Sci, 2021
Zhang J, Temmer M, Gopalswamy N, Malandraki O, Nitta NV, Patsourakos S, Shen F, Vršnak B, Wang Y, Webb D, Desai MI, Dissauer K, Dresing N, Dumbović M, Feng X, Heinemann SG, Laurenza M, Lugaz N, Zhuang B.   +18 more
europepmc   +1 more source

The Companions to B and A Stars Snapshot (C-BASS) Survey. I. Discovery of a Young Brown Dwarf Companion to HIP 17453

The Astronomical Journal
We report the detection of a new brown dwarf companion to HIP 17453 A, a chemically peculiar A0V star located at a distance of 81 pc. HIP 17453 A was observed with high-resolution adaptive-optics imaging using the Near-Infrared Camera 2 on the Keck II ...
Marah Brinjikji, Adam J. R. W. Smith, Jenny Patience, Eric L. Nielsen, Austin Ware, Jorge A. Sanchez, Robert De Rosa, Jasmine Garani, Emma Softich, Michael C. Liu, Bruce A. Macintosh, Thomas M. Esposito, Brendan P. Bowler, William M. J. Best, Sarah Blunt, Trent J. Dupuy, Justin Hom, Jessica Klusmeyer, Franck Marchis, Jayke S. Nguyen, Anne E. Peck, Mark W. Phillips, William Roberson, Jean-Baptiste Ruffio, William Thompson, Zahed Wahhaj, Samuel Walker, Jason J. Wang, Patrick A. Young   +28 more
doaj   +1 more source