Zobrazeno 1 - 10
of 54 702
pro vyhledávání: '"Astrophysics - Earth and Planetary Astrophysics"'
Publikováno v:
Nature Communications 15, 8374 (2024)
Exoplanet exploration has revealed that many$\unicode{x2013}$perhaps most$\unicode{x2013}$terrestrial exoplanets formed with substantial H$_2$-rich envelopes, seemingly in contrast to solar system terrestrials, for which there is scant evidence of lo
Externí odkaz:
http://arxiv.org/abs/2409.18940
Autor:
Delorme, P., Chomez, A., Squicciarini, V., Janson, M., Flasseur, O., Schib, O., Gratton, R., Lagrange, A-M., Langlois, M., Mayer, L., Helled, R., Reïffert, S, Kiefer, F., Biller, B., Chauvin, G., Fontanive, C., Henning, Th., Kenworthy, M., Marleau, G-D., Mesa, D., Meyer, M. R., Mordasini, C., Ringqvist, S. C., Samland, M., Vigan, A., Viswanath, G.
Exoplanets form from circumstellar protoplanetary discs whose fundamental properties (notably their extent, composition, mass, temperature and lifetime) depend on the host star properties, such as their mass and luminosity. B-stars are among the most
Externí odkaz:
http://arxiv.org/abs/2409.18793
Autor:
Brasser, R.
Terrestrial planet formation (TPF) is a difficult problem that has vexed researchers for decades. Numerical models are only partially successful at reproducing the orbital architecture of the inner planets, but have generally not considered the effec
Externí odkaz:
http://arxiv.org/abs/2409.18610
Autor:
Narang, Mayank, Puravankara, Manoj, Vedantham, H. K., Chandra, C. H. Ishwara, De, Ayanabha, Tyagi, Himanshu, Banerjee, Bihan, Nayak, Prasanta K., Surya, Arun, Shridharan, B., Pathak, Vinod C., Tripathi, Mihir
Coherent radio emission with properties similar to planetary auroral signals has been reported from GJ 1151, a quiescent, slow-rotating mid-M star, by the LOFAR Two-metre (120-170 MHz) Sky Survey (LoTSS). The observed {LOFAR} emission is fairly brigh
Externí odkaz:
http://arxiv.org/abs/2409.18507
Autor:
Šubjak, Ján, Gandolfi, Davide, Goffo, Elisa, Rapetti, David, Nowak, Grzegorz, Mizuki, Toshiyuki, Dai, Fei, Serrano, Luisa M., Wilson, Thomas G., Jankowski, Dawid, Goździewski, Krzysztof, Jenkins, Jon M., Twicken, Joseph D., Winn, Joshua N., Bieryla, Allyson, Cochran, William D., Collins, Karen A., Deeg, Hans J., García, Rafael A., Guenther, Eike W., Hatzes, Artie P., Kabáth, Petr, Korth, Judith, Latham, David W., Livingston, John H., Mathur, Savita, Narita, Norio, Orell-Miquel, Jaume, Pallé, Enric, Persson, Carina M., Redfield, Seth, Schwarz, Richard P., Watanabe, David, Ziegler, Carl
We report on the discovery and spectroscopic confirmation of TOI-2458 b, a transiting mini-Neptune around an F-type star leaving the main-sequence with a mass of $M_\star=1.05 \pm 0.03$ M$_{\odot}$, a radius of $R_\star=1.31 \pm 0.03$ R$_{\odot}$, an
Externí odkaz:
http://arxiv.org/abs/2409.17532
Publikováno v:
Icarus, 425, 116322
The Polana-Eulalia Complex (PEC) is an Inner Main Belt, C-complex asteroid population that may be the source of the near-Earth asteroid spacecraft mission targets (101955) Bennu and (162173) Ryugu. Here, we report a size-based investigation of the vi
Externí odkaz:
http://arxiv.org/abs/2409.18306
We present spectroscopic and photometric observations of Bernhard-2, which was previously identified as a candidate system to host a misaligned circumbinary disk. Our spectroscopic measurements confirm that Bernhard-2 indeed contains an eccentric ($e
Externí odkaz:
http://arxiv.org/abs/2409.18296
Many planets have hydrogen-dominated atmospheres, including sub-Neptune exoplanets, recently formed planets with primordial atmospheres, and the Solar System's giant planets. Atmospheric convection behaves differently in hydrogen-rich atmospheres com
Externí odkaz:
http://arxiv.org/abs/2409.18217
Context. Clouds are ubiquitous in exoplanets' atmospheres and play an important role in setting the opacity and chemical inventory of the atmosphere. Understanding clouds is a critical step in interpreting exoplanets' spectroscopic data. Aims. The ai
Externí odkaz:
http://arxiv.org/abs/2409.18181
Autor:
Chachan, Yayaati, Lee, Eve J.
Small planets ($\lesssim 1$ M$_\oplus$) at intermediate orbital distances ($\sim$1 au) represent an uncharted territory in exoplanetary science. The upcoming microlensing survey by the Nancy Grace Roman Space Telescope will be sensitive to objects as
Externí odkaz:
http://arxiv.org/abs/2409.18171