Results 41 to 50 of about 21,448 (215)

Terms Photometry of Known Transiting Exoplanets [PDF]

, 2011
The Transit Ephemeris Refinement and Monitoring Survey conducts radial velocity and photometric monitoring of known exoplanets in order to refine planetary orbits and predictions of possible transit times. This effort is primarily directed toward planets
Kane, Stephen R., Genady Pilyavsky, Wyatt, Pamela, Gelino, Dawn M., Jason T. Wright, Ciardi, David R., Pamela Wyatt, Diana Dragomir, Kaspar von Braun, Stephen R. Kane, Wright, Jason T., Payne, Alan, Dawn M. Gelino, Rabus, Markus, Ramirez, Solange V., Pilyavsky, Genady, Alan Payne, von Braun, Kaspar, J. Zachary Gazak, Suvrath Mahadevan, Dragomir, Diana, Mahadevan, Suvrath, Gazak, J. Zachary, Markus Rabus, Solange V. Ramirez, David R. Ciardi   +25 more
core   +1 more source

Biological, Equilibrium and Photochemical Signatures of C, N and S Isotopes in the Early Earth and Exoplanet Atmospheres

Life
The unambiguous detection of biosignatures in exoplanet atmospheres is a primary objective for astrobiologists and exoplanet astronomers. The primary methodology is the observation of combinations of gases considered unlikely to coexist in an atmosphere ...
James R. Lyons
doaj   +1 more source

Habitable exoplanet - a statistical search for life

Frontiers in Astronomy and Space Sciences
IntroductionThe identification of habitable exoplanets is an important challenge in modern space science, requiring the combination of planetary and stellar parameters to assess conditions that support life.MethodsUsing a dataset of 5867 exoplanets from ...
Prasenjit Banerjee, Asis Kumar Chattopadhyay   +1 more
doaj   +1 more source

VISIBLE AND INFRARED TELESCOPES IN DETECTION OF EARTH-LIKE EXOPLANETS

Radio Physics and Radio Astronomy, 2016
Object and purpose: The study examines the balance of resolving and light-harvesting (penetrating) abilities of filled and sparse aperture telescopes in direct detection of terrestrial exoplanets.
A. D. Yegorov, V. A. Yegorov, S. A. Yegorov, L. I. Yelenskaya, I. Ye. Sinel’nikov   +4 more
doaj   +1 more source

MHD Study of Extreme Space Weather Conditions for Exoplanets With Earth‐Like Magnetospheres: On Habitability Conditions and Radio‐Emission

Space Weather, 2022
The present study aims at characterizing the habitability conditions of exoplanets with an Earth‐like magnetosphere inside the habitable zone of M and F stars, caused by the direct deposition of the stellar wind on the exoplanet surface.
J. Varela, A. S. Brun, P. Zarka, A. Strugarek, F. Pantellini, V. Réville   +5 more
doaj   +1 more source

Design Considerations for Visualization Transitions of 3D Spatial Data in Hybrid AR‐Desktop Environments

Computer Graphics Forum, EarlyView.
We present design considerations for animated transitions of the appearance of 3D spatial datasets in a hybrid Augmented Reality‐desktop context. Such hybrid interfaces combine both traditional and immersive displays to facilitate the exploration of 2D and 3D data representations in the environment in which they are best displayed.
Yucheng Lu, Tobias Rau, Benjamin Lee, Andreas Köhn, Michael Sedlmair, Christian Sandor, Tobias Isenberg   +6 more
wiley   +1 more source

Exoplanets [PDF]

Nature, 2014
Adam S. Burrows, Geoffrey W. Marcy
  +6 more sources

Chemical Abundances of the Bioessential Elements C, O, and S, and the Refractory Elements Fe and Ni, in Solar-type Exoplanet-hosting Stars from HARPS North and South

The Astronomical Journal
We determined atmospheric and evolutionary parameters, along with chemical abundances of C, O, S, Fe, and Ni for 290 solar-type exoplanet-hosting stars using high-resolution HARPS-North and HARPS-South spectra, and radii for 373 exoplanets using ...
Ellen Costa-Almeida, Luan Ghezzi, Katia Cunha, Verne V. Smith, Jonathan J. Fortney   +4 more
doaj   +1 more source

Classifying Exoplanets with a Gaussian Mixture Model

The Open Journal of Astrophysics, 2018
Recently, Odrzywolek and Rafelski have found three distinct categories of exoplanets, when they are classified based on density. We first carry out a similar classification of exoplanets according to their density using the Gaussian Mixture Model ...
Soham Kulkarni, Shantanu Desai
doaj   +1 more source

On Our Cosmic (In)significance

Ratio, EarlyView.
ABSTRACT This article discusses three interpretations of cosmic significance, all of which reveal something important about the notion of significance. Along the way, it proposes a unified view of significance by combining elements of each of the views.
Oskari Sivula
wiley   +1 more source