Results 61 to 70 of about 44,852 (244)

Follow-Up and Validation of K2 and TESS Planetary Systems With Keck NIRC2 Adaptive Optics Imaging

Frontiers in Astronomy and Space Sciences, 2021
High resolution imaging (HRI) is a critical part of the transiting exoplanet follow-up and validation process. HRI allows previously unresolved stellar companions and background blends to be resolved, vetting false positive signals and improving the ...
Joshua E. Schlieder, Erica J. Gonzales, David R. Ciardi, Rahul I. Patel, Ian J. M. Crossfield, Justin R. Crepp, Courtney D. Dressing, Thomas Barclay, Thomas Barclay, Andrew W. Howard   +9 more
doaj   +1 more source

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

Journal of Research in Science Teaching, EarlyView.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson, Anne‐Marie Cederqvist   +1 more
wiley   +1 more source

Is there an exoplanet in the Solar system? [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2016
Abstract We investigate the prospects for the capture of the proposed Planet 9 from other stars in the Sun's birth cluster. Any capture scenario must satisfy three conditions: the encounter must be more distant than ∼150 au to avoid perturbing the Kuiper belt; the other star must have a wide-orbit planet (a ≳ 100 au); the planet must be ...
Mustill, Alexander J.,, Raymond, Sean N., Davies, Melvyn B.,   +2 more
openaire   +4 more sources

Lactea: Web‐Based Spectrum‐Preserving Multi‐Resolution Visualization of the GAIA Star Catalog

Computer Graphics Forum, EarlyView.
Abstract The explosion of data in astronomy has resulted in an era of unprecedented opportunities for discovery. The GAIA mission's catalog, containing a large number of light sources (mostly stars) with several parameters such as sky position and proper motion, is playing a significant role in advancing astronomy research and has been crucial in ...
Reem Alghamdi, Markus Hadwiger, Guido Reina, Alberto Jaspe‐Villanueva   +3 more
wiley   +1 more source

Exoplanets and the Sun

, 2019
We review the recent progress in understanding the jet structures on exoplanets as well as on and inside the Sun. The emphasis is on the more robust aspects of observation and numerical modeling that relate directly to jets. For the exoplanets, the primary focus is on hot-Jupiters since many more observations are available for them presently than other
Woosok Moon, Heidar Thrastarson, Tommi Koskinen, Steven M. Tobias, Jack William Skinner, James Y-K. Cho, Peter L. Read   +6 more
openaire   +3 more sources

Exoplanet Transit Database. Reduction and processing of the photometric data of exoplanet transits

, 2009
We demonstrate the newly developed resource for exoplanet researchers - The Exoplanet Transit Database. This database is designed to be a web application and it is open for any exoplanet observer. It came on-line in September 2008.
Agol, Holman, Kipping, Luboš Brát, Mandel, Mayor, Miralda-Escudé, Ondřej Pejcha, Southworth, Stanislav Poddaný, Torres, Winn   +11 more
core   +1 more source

First results of the Kourovka Planet Search: discovery of transiting exoplanet candidates in the first three target fields [PDF]

, 2016
We present the first results of our search for transiting exoplanet candidates as part of the Kourovka Planet Search (KPS) project. The primary objective of the project is to search for new hot Jupiters which transit their host stars, mainly in the ...
Balega, Yuri Yu., Baştürk, Özgür, Benni, Paul, Bretton, Marc, Burdanov, Artem Y., Dyachenko, Vladimir V., Ivanov, Kirill I., Krushinsky, Vadim V., Lyashenko, Artem Yu., Marchini, Alessandro, Moiseev, Alexei V., Naves, Ramon, Popov, Alexander A., Puchalski, Damian, Rastegaev, Denis A., Rusov, Sergei A., Shadick, Stan, Sokov, Evgenii N., Sokova, Iraida A., Özavcı, Ibrahim   +19 more
core   +1 more source

A fresh look into the interaction of exoplanets magnetosphere with stellar winds using MHD simulations

Frontiers in Astronomy and Space Sciences
Numerous numerical studies have been carried out in recent years that simulate different aspects of exoplanets’ magnetosphere and stellar winds. These studies have focused primarily on hot Jupiters with sun-like stars. This study addresses the challenges
Fatemeh Bagheri, Fatemeh Bagheri, Ramon Lopez, Kevin Pham   +3 more
doaj   +1 more source

The Exoplanet Population Observation Simulator. I - The Inner Edges of Planetary Systems

, 2018
The Kepler survey provides a statistical census of planetary systems out to the habitable zone. Because most planets are non-transiting, orbital architectures are best estimated using simulated observations of ensemble populations.
Apai, Daniel, Ciesla, Fred J., Mulders, Gijs D., Pascucci, Ilaria   +3 more
core   +1 more source