Results 21 to 30 of about 39,677 (221)

Transmission Spectroscopy of the Earth–Sun System to Inform the Search for Extrasolar Life [PDF]

, 2021
Upcoming NASA astrophysics missions such as the James Webb Space Telescope will search for signs of life on planets transiting nearby stars. Doing so will require coadding dozens of transmission spectra to build up sufficient signal to noise while ...
L. Mayorga, J. Lustig-Yaeger, E. May, K. Sotzen, Junellie Gonzalez-Quiles, B. Kilpatrick, E. Martin, K. Mandt, K. Stevenson, N. Izenberg   +9 more
semanticscholar   +1 more source

Venus as an anchor point for planetary habitability [PDF]

Nature Astronomy
A major focus of the planetary science and astrobiology community is the understanding of planetary habitability, including the myriad factors that control the evolution and sustainability of temperate surface environments such as that of Earth.
Stephen R. Kane, Paul K. Byrne
semanticscholar   +1 more source

Super-Earth of 8 M⊕ in a 2.2-day orbit around the K5V star K2-216 [PDF]

Astronomy & Astrophysics, 2018
Context. Although thousands of exoplanets have been discovered to date, far fewer have been fully characterised, in particular super-Earths. The KESPRINT consortium identified K2-216 as a planetary candidate host star in the K2 space mission Campaign 8 ...
C. Persson, M. Fridlund, O. Barrag'an, F. Dai, D. Gandolfi, A. Hatzes, T. Hirano, S. Grziwa, J. Korth, J. Prieto-Arranz, L. Fossati, V. V. Eylen, A. B. Justesen, J. Livingston, D. Kubyshkina, H. Deeg, E. Guenther, G. Nowak, J. Cabrera, P. Eigmüller, S. Csizmadia, Andra M. Smith, A. Erikson, S. Albrecht, A. Sobrino, W. Cochran, M. Endl, Massimiliano Esposito, A. Fukui, P. Heeren, D. Hidalgo, M. Hjorth, M. Kuzuhara, N. Narita, D. Nespral, E. Pallé, M. Pätzold, H. Rauer, F. Rodler, J. Winn   +39 more
semanticscholar   +1 more source

THE CHANDRA X-RAY SURVEY OF PLANETARY NEBULAE (ChanPlaNS): PROBING BINARITY, MAGNETIC FIELDS, AND WIND COLLISIONS [PDF]

, 2012
We present an overview of the initial results from the Chandra Planetary Nebula Survey (ChanPlaNS), the first systematic (volume-limited) Chandra X-Ray Observatory survey of planetary nebulae (PNe) in the solar neighborhood.
J. Kastner, R. Montez, B. Balick, D. Frew, B. Miszalski, R. Sahai, E. Blackman, Y. Chu, O. Marco, A. Frank, M. Guerrero, J. López, V. Rapson, A. Zijlstra, E. Behar, V. Bujarrabal, R. Corradi, J. Nordhaus, Q. Parker, C. Sandin, D. Schonberner, N. Soker, J. Sokoloski, M. Steffen, T. Ueta, E. Science, Laboratory for Multiwavelength Astrophysics, R. I. O. Technology, D. Astronomy, U. Washington, D. Physics, Astronomy, M. R. C. F. Astronomy, Astrophysics, Astrophotonics, M. University, South African astronomical Observatory, Southern African Large Telescope Foundation, Jet propulsion Laboratory, C. I. O. Technology., D. Physics, U. Rochester, U. Illinois, I. D. Astronom'ia, Glorieta de la Astronom'ia sn, I. D. Astronomía, Universidad Autonoma de Mexico, S. O. Physics, U. Manchester, Technion, Israel, O. Nacional, A. Henares, Spain., Instituto de Astrof'isica de Canarias, Tenerife, D. Astrof'isica, U. L. Laguna, N. Astronomy, A. Fellow, Center for Computational Relativity, Gravitation, Leibniz Institute for Astrophysics Potsdam, Columbia Astrophysics Laboratory, Columbia University, U. Denver, Departamento de F'isica Te'orica, U. A. D. Madrid   +67 more
semanticscholar   +1 more source

The Influence of Different Solar System Planetary Ephemerides on Pulsar Timing

Research in Astronomy and Astrophysics
Pulsar timing offers a comprehensive avenue for exploring diverse topics in physics and astrophysics. High-precision solar system planetary ephemeris is crucial for pulsar timing as it provides the positions and velocities of solar system planets ...
Jianpeng Dai, Wei Han, Na Wang
semanticscholar   +1 more source

Transiting Exoplanet Survey Satellite (TESS) [PDF]

Astronomical Telescopes and Instrumentation, 2014
The Transiting Exoplanet Survey Satellite (TESS ) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics Explorer mission. The spacecraft will be placed into a highly elliptical 13.
G. Ricker, J. Winn, R. Vanderspek, D. Latham, G. Bakos, Jacob L. Bean, Z. Berta-Thompson, Timothy M. Brown, L. Buchhave, Nathaniel Butler, R. P. Butler, W. Chaplin, D. Charbonneau, J. Christensen-Dalsgaard, M. Clampin, D. Deming, J. Doty, Nathan M. De Lee, C. Dressing, E. Dunham, M. Endl, F. Fressin, J. Ge, T. Henning, M. Holman, Andrew W. Howard, S. Ida, J. Jenkins, G. Jernigan, J. Johnson, L. Kaltenegger, N. Kawai, H. Kjeldsen, G. Laughlin, A. Levine, D. Lin, J. Lissauer, P. Macqueen, G. Marcy, P. McCullough, T. Morton, N. Narita, M. Paegert, E. Pallé, F. Pepe, J. Pepper, A. Quirrenbach, S. Rinehart, D. Sasselov, B. Sato, S. Seager, A. Sozzetti, K. Stassun, P. Sullivan, A. Szentgyorgyi, G. Torres, S. Udry, J. Villasenor   +57 more
semanticscholar   +1 more source

The Architectural Design Rules of Solar Systems based on the New Perspective

, 2009
On the basis of the Lunar Laser Ranging Data released by NASA on the Silver Jubilee Celebration of Man Landing on Moon on 21st July 1969-1994, theoretical formulation of Earth-Moon tidal interaction was carried out and Planetary Satellite Dynamics was ...
A Johnson, AN Halliday, Bijay Kumar Sharma, BK Sharma, C Broeg, C Hellier, CL Cook, D Apes, DD Sasselov, DD Sasselov, DP Rubicam, F Marzari, G Israelian, GA Krasinsky, GA Krasinsky, GE Williams, GH Darwin, GH Darwin, H Tanaka, JE Chambers, JJ Dukla, JJ Lissauer, JP Zahn, KJ Epstein, M Reidemeister, ME Zolansky, N Murray, NC Santos, P Goldreich, RP Nelson, S Ida, S Leschiutta, SN Cuzzi, T Jong de   +33 more
core   +1 more source

Novel Research in Astrophysics and Geophysics

BOOK OF ABSTRACTS AND CONTRIBUTED PAPERS: Building bridges between climate science and society through a transdisciplinary network
In the past few decades innovative approach is to foster collaboration and effective synergies among disciplines such as space exploration, atmospheric and Earth observations, laboratory and field experiments, and numerical modeling, with a high ...
V. A. Srećković, A. Kolarski, M. Langović, F. Arnaut, Z. Mijić, S. Jevremović, Jelena Barović, O. Kounchev   +7 more
semanticscholar   +1 more source

Planet Populations as a Function of Stellar Properties

, 2018
Exoplanets around different types of stars provide a window into the diverse environments in which planets form. This chapter describes the observed relations between exoplanet populations and stellar properties and how they connect to planet formation ...
A Cumming, A Izidoro, A Mortier, A Mortier, A Silburt, A Wolfgang, A. Mortier, AC Boley, AN Youdin, AP Boss, AP Boss, AW Howard, AW Mann, B Courcol, B Rojas-Ayala, Benjamin T. Montet, BMS Hansen, BMS Hansen, C Beaugé, C Cossou, C Dressing, C Dressing, C Laws, C Mordasini, C Mordasini, C Obermeier, C Terquem, Christian Clanton, CJ Burke, Courtney D. Dressing, D Charbonneau, D Foreman-Mackey, D Huber, D Huber, DA Fischer, Daniel C. Fabrycky, DNC Lin, Dun Wang, E Chiang, E Gaidos, E Gaidos, E Gaidos, E Jehin, E Jofré, E Kokubo, E Kokubo, E Kokubo, EA Petigura, EA Petigura, EJ Lee, EW Thommes, F Fressin, F Meru, FJ Ciesla, G Gonzalez, G Gonzalez, G Gonzalez, G Kennedy, G Laughlin, G Laughlin, GAL Coleman, GD Mulders, GD Mulders, GD Mulders, GD Mulders, GW Marcy, GW Wetherill, H Rein, HE Schlichting, I Pascucci, IJM Crossfield, IN Reid, J Maldonado, J Wang, JA Johnson, JA Johnson, JA Johnson, JB Pollack, JE Chambers, JJ Lissauer, JL Christiansen, JN Winn, Jonathan J. Swift, JP Williams, K Fuhrmann, K Kornet, K Sadakane, K.-M. Dittkrist, KC Schlaufman, KC Schlaufman, KC Schlaufman, Konstantin Batygin, L Ghezzi, L Pasquini, LA Buchhave, LA Buchhave, LA Buchhave, M Endl, M Endl, M Gillon, M Ikoma, M Mayor, M Mayor, M. Ansdell, ME Everett, MI Jones, N. C. Santos, NC Santos, NC Santos, NC Santos, NC Santos, P Goldreich, P Pinilla, PW Sullivan, RC Terrien, RI Dawson, RL Gilliland, Robert A. Wittenmyer, RP Butler, S Dong, S Hekker, S Ida, S Ida, S Ida, S Mathur, S Mohanty, S Udry, S Udry, S. G. Sousa, Sabine Reffert, Scott A. Barenfeld, Sean M. Andrews, SG Sousa, SN Raymond, SN Raymond, TD Morton, TM Brown, V. Zh. Adibekyan, Vardan Adibekyan, W Zhu, WR Ward, X Bonfils, Y Hasegawa, Y Hasegawa, Y Takeda, Y. Alibert, Y. Alibert, ZK Berta   +147 more
core   +1 more source

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, EarlyView.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source