Results 61 to 70 of about 2,563,330 (219)

Physical constraints for the evolution of life on exoplanets

, 2018
Recently, many Earth-sized planets have been discovered around stars other than the Sun that might possess appropriate conditions for life. The development of theoretical methods for assessing the putative habitability of these worlds is of paramount importance, since it serves the dual purpose of identifying and quantifying what types of biosignatures
Lingam, Manasvi, Loeb, Abraham
openaire   +2 more sources

dfm/exoplanet: exoplanet v0.2.0

, 2019
<ul> <li>Updates <code>starry</code> to get much better performance for high order spherical harmonics</li> <li>Renames <code>StarryLightCurve</code> to <code>LimbDarkLightCurve</code></li>
Dan Foreman-Mackey, Eric Agol, Tom Barclay, Ian Czekala, Rodrigo Luger, Geert Barentsen   +5 more
core   +1 more source

Helium Depletion in Escaping Atmospheres of Sub-Neptunes: A Signature of Primary-to-secondary Transition

The Astrophysical Journal
Short-period sub-Neptunes are common in extrasolar systems. These sub-Neptunes are generally thought to have primary atmospheres of protoplanetary-disk gas origin.
Issei Kobayashi, Hiroyuki Kurokawa, Laura Schaefer, Satoshi Okuzumi   +3 more
doaj   +1 more source

The Great Cosmic Silence: What Does the Fermi Paradox Tell About the Future of Humanity?

Global Policy, Volume 17, Issue 4, Page 553-565, September 2026.
ABSTRACT This article examines how institutional time horizons shape the long‐term survival prospects of human technological civilisation. While research on global catastrophic and existential risks has expanded, the temporal structures of political‐economic institutions remain underexamined.
Heikki Patomäki
wiley   +1 more source

Products and Models for "Early Release Science of the Exoplanet WASP-39b with JWST NIRCam"

, 2022
Associated Publication: https://www.nature.com/articles/s41586-022-05590-4 OVERVIEW: Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a fundamental step towards constraining the dominant chemical processes at work ...
Petit dit de la Roche, Dominique J. M., Murray, Catriona A., Wheatley, Peter J., Ahrer, Eva-Maria, Stevenson, Kevin, Schlawin, Everett, Zieba, Sebastian, Moran, Sarah E., Mansfield, Megan   +8 more
core   +1 more source

Resonant Super-Earths Dancing with EKL Oscillations: Transit Timing Variation Phase Excitation and Resonance Disruption by EKL Interactions between a Cold Jupiter and Stellar Companion

The Astronomical Journal
Near-resonant Kepler planets are dynamically hot, as evidenced by nonzero transit timing variation (TTV) phases, indicating that free eccentricities are not damped. Recent observations suggest that circulating near-resonant planets tend to be dynamically
Pin-Gao Gu, Gongjie Li
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

The 0.5MJ transiting exoplanet WASP-13b [PDF]

, 2009
We report the discovery of WASP-13b, a low-mass $ M_{\rm p} = 0.46 ^_~M_J$ transiting exoplanet with an orbital period of 4.35298 $\pm$ 0.00004 days. The transit has a depth of 9 mmag, and although our follow-up photometry does not allow us to constrain ...
West, Richard G., Joshi, YC, Christian, Damian Joseph, Wheatley, P.J., Enoch, B., Maxted, Pierre, Loeillet, B, D. R. Anderson, Christian, D.J., Irwin, J., Horne, K, Horne, K., K. Horne, Wilson, D.M., Udry, S., Gibson, N.P., B. Loeillet, Wilson, D. M., Christian, D. J., C. Moutou, Moutou, C., Barros, S.C.C., F. P. Keenan, Haswell, C. A., Maxted, P, Queloz, Didier, Simpson, E., Loeillet, B., Moutou, Claire, H. C. Stempels, Anderson, DR, Lister, TA, Stempels, Eric, Cameron, E., Queloz, D., Irwin, J, P. Maxted, Stempels, H.C., Cameron, A. Collier, Norton, Andrew J., N. Parley, D. M. Wilson, Keenan, F. P., Barros, S. C. C., Anderson, D.R., Simpson, E, Norton, A.J., F. Bouchy, Ryans, R, Horne, Keith Douglas, Enoch, B, B. Smalley, A. Collier Cameron, Wilson, DM, Smalley, B., C. Hellier, G. Hébrard, Cameron, Andrew Collier, Collier Cameron, A., Haswell, C.A., Collier Cameron, A, D. Pollacco, Queloz, D, Gibson, N. P., Joshi, Y. C., E. Simpson, Pollacco, Don, Street, R. A., I. Todd, Skillen, I, Wheatley, PJ, West, R.G., Hellier, Coel, Street, R., Y. C. Joshi, Street, R.A., Skillen, I., West, R. G., M. Mayor, D. J. Christian, R. A. Street, Irwin, Jonathan, Christian, DJ, Ryans, R., C. A. Haswell, Mayor, M., Todd, I., L. Hebb, Bouchy, F, Hebb, L., Haswell, CA, Norton, AJ, Smalley, Barry, B. Enoch, Stempels, H. C., Mayor, M, Norton, A. J., Hébrard, G, Gibson, NP, Parley, N, Hebb, L, R. G. West, Lister, T. A., J. Irwin, Keenan, FP, Todd, I, Hébrard, G., Pollacco, D, T. A. Lister, Pollacco, D., Barros, SCC, Parley, N., R. Ryans, D. Queloz, N. P. Gibson, Hellier, C., Keenan, F.P., S. C. C. Barros, Moutou, C, Lister, T.A., Todd, Ian, Bouchy, François, I. Skillen, West, RG, Bouchy, F., Smalley, B, P. J. Wheatley, Gibson, Neale, Hellier, C, S. Udry, Maxted, P., Stempels, HC, Joshi, Y.C., Wheatley, P. J., A. J. Norton, Anderson, D. R., Street, RA, Udry, S   +137 more
core   +1 more source

Impacting Atmospheres: How Late-stage Pollution Alters Exoplanet Composition

The Astrophysical Journal
The atmospheric composition of exoplanets is often considered as a probe of the planet’s formation conditions. How exactly the initial chemical memory may be altered from the birth to the final state of the planet, however, remains unknown.
Emilia Vlahos, Yayaati Chachan, Vincent Savignac, Eve J. Lee   +3 more
doaj   +1 more source

Leveraging Multimodal Large Language Models to Analyse Student Exploration Behaviours in Educational Game Environments

Journal of Computer Assisted Learning, Volume 42, Issue 4, August 2026.
ABSTRACT Background Video data provides rich opportunities to examine student behaviour in game‐based learning environments, capturing not only observable actions but also subtle indicators of cognitive engagement. However, traditional video analysis is labor‐intensive, and current applications of AI to this task are limited by models trained on ...
Yiqiu Zhou, Xiner Liu, Andres Felipe Zambrano, Luc Paquette, Amanda Barany, Jaclyn Ocumpaugh, Ryan S. Baker, Jeff Ginger   +7 more
wiley   +1 more source