Zobrazeno 1 - 10
of 356 297
pro vyhledávání: '"emission spectra"'
Autor:
Zhang, Michael, Paragas, Kimberly, Bean, Jacob L., Yeung, Joseph, Chachan, Yayaati, Greene, Thomas P., Lunine, Jonathan, Deming, Drake
We present the 2.4--5.0 \um JWST/NIRCam emission spectrum of HD 189733b, along with an independent re-reduction of the previously published transmission spectrum at the same wavelengths. We use an upgraded version of PLanetary Atmospheric Tool for Ob
Externí odkaz:
http://arxiv.org/abs/2410.22398
Atmospheres above lava-ocean planets (LOPs) hold clues as to the properties of their interiors, owing to the expectation that the two reservoirs are in chemical equilibrium. Here we consider `mineral' atmospheres produced in equilibrium with silicate
Externí odkaz:
http://arxiv.org/abs/2408.16548
Autor:
Yang, Jingxuan, Hammond, Mark, Piette, Anjali A. A., Blecic, Jasmina, Bell, Taylor J., Irwin, Patrick G. J., Parmentier, Vivien, Tsai, Shang-Min, Barstow, Joanna K., Crouzet, Nicolas, Kreidberg, Laura, Mendonça, João M., Taylor, Jake, Baeyens, Robin, Ohno, Kazumasa, Teinturier, Lucas, Nixon, Matthew C.
Spectroscopic phase curves of hot Jupiters measure their emission spectra at multiple orbital phases, thus enabling detailed characterisation of their atmospheres. Precise constraints on the atmospheric composition of these exoplanets offer insights
Externí odkaz:
http://arxiv.org/abs/2406.03490
Autor:
Wiser, Lindsey S., Line, Michael R., Welbanks, Luis, Mansfield, Megan, Parmentier, Vivien, Bean, Jacob L., Fortney, Jonathan J.
Publikováno v:
ApJ 971 33 (2024)
We present a population-level analysis of the dayside thermal emission spectra of 19 planets observed with Hubble WFC3 and Spitzer IRAC 3.6 and 4.5 microns, spanning equilibrium temperatures 1200-2700 K and 0.7-10.5 Jupiter masses. We use grids of pl
Externí odkaz:
http://arxiv.org/abs/2408.06442
We study barrier discharges in CO$_2$ using optical emission spectroscopy and electrical measurements. We record the spectra of weak CO$_2$ barrier discharge emission in UV-VIS-NIR range. The CO spectral bands of 3rd positive, Angstrom and Asundi sys
Externí odkaz:
http://arxiv.org/abs/2406.14105
Publikováno v:
Proceedings of the National Academy of Sciences of the USA, volume 121, issue 37, article e2410280121 (2024)
We present Einstein coefficient spectra and a detailed-balance derivation of generalized Einstein relations between them that is based on the connection between spontaneous and stimulated emission. If two broadened levels or bands overlap in energy,
Externí odkaz:
http://arxiv.org/abs/2405.13742
Structural Descriptors and Information Extraction from X-ray Emission Spectra: Aqueous Sulfuric Acid
Machine learning can reveal new insights into X-ray spectroscopy of liquids when the local atomistic environment is presented to the model in a suitable way. Many unique structural descriptor families have been developed for this purpose. We benchmar
Externí odkaz:
http://arxiv.org/abs/2402.08355
Autor:
Falco, Aurélien, Tremblin, Pascal, Charnoz, Sébastien, Ridgway, Robert J., Lagage, Pierre-Olivier
Hot rocky super-Earths are thought to be sufficiently irradiated by their host star to melt their surface and thus allow for long-lasting magma oceans. Some processes have been proposed for such planets to have retained primordial hydrogen captured d
Externí odkaz:
http://arxiv.org/abs/2401.14744