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Akademický článek
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Autor:
Khalatyan, A., Anders, F., Chiappini, C., Queiroz, A. B. A., Nepal, S., Ponte, M. dal, Jordi, C., Guiglion, G., Valentini, M., Elipe, G. Torralba, Steinmetz, M., Pantaleoni-González, M., Malhotra, S., Jiménez-Arranz, Ó., Enke, H., Casamiquela, L., Ardèvol, J.
Publikováno v:
A&A 691, A98 (2024)
In this paper, we explore the feasibility of using machine learning regression as a method of extracting basic stellar parameters and line-of-sight extinctions from spectro-photometric data. We built a stable gradient-boosted random-forest regressor
Externí odkaz:
http://arxiv.org/abs/2407.06963
Autor:
Martínez, Virginia Ardévol, Rizzi, Romeo, Saffidine, Abdallah, Sikora, Florian, Vialette, Stéphane
For any natural number $d$, a graph $G$ is a (disjoint) $d$-interval graph if it is the intersection graph of (disjoint) $d$-intervals, the union of $d$ (disjoint) intervals on the real line. Two important subclasses of $d$-interval graphs are unit a
Externí odkaz:
http://arxiv.org/abs/2404.17872
Autor:
Martínez, Francisco Ardévol, Min, Michiel, Huppenkothen, Daniela, Kamp, Inga, Palmer, Paul I.
Interpreting the observations of exoplanet atmospheres to constrain physical and chemical properties is typically done using Bayesian retrieval techniques. Because these methods require many model computations, a compromise is made between model comp
Externí odkaz:
http://arxiv.org/abs/2401.04168
Publikováno v:
Research Notes of the AAS, 2023, Volume 7, Issue 12, id.265
We report the discovery of a previously uncatalogued arch-shaped filamentary nebula at the outer part of the Triangulum galaxy (M33) centred at R.A. = 1h34m25s, Dec = +30d20m17s (ICRS). This discovery stems from meticulous observations employing deep
Externí odkaz:
http://arxiv.org/abs/2312.05292
Autor:
Dyrek, Achrène, Min, Michiel, Decin, Leen, Bouwman, Jeroen, Crouzet, Nicolas, Mollière, Paul, Lagage, Pierre-Olivier, Konings, Thomas, Tremblin, Pascal, Güdel, Manuel, Pye, John, Waters, Rens, Henning, Thomas, Vandenbussche, Bart, Martinez, Francisco Ardevol, Argyriou, Ioannis, Ducrot, Elsa, Heinke, Linus, Van Looveren, Gwenael, Absil, Olivier, Barrado, David, Baudoz, Pierre, Boccaletti, Anthony, Cossou, Christophe, Coulais, Alain, Edwards, Billy, Gastaud, René, Glasse, Alistair, Glauser, Adrian, Greene, Thomas P., Kendrew, Sarah, Krause, Oliver, Lahuis, Fred, Mueller, Michael, Olofsson, Goran, Patapis, Polychronis, Rouan, Daniel, Royer, Pierre, Scheithauer, Silvia, Waldmann, Ingo, Whiteford, Niall, Colina, Luis, van Dishoeck, Ewine F., Greve, Thomas, Ostlin, Göran, Ray, Tom P., Wright, Gillian
WASP-107b is a warm ($\sim$740 K) transiting planet with a Neptune-like mass of $\sim$30.5 $M_{\oplus}$ and Jupiter-like radius of $\sim$0.94 $R_{\rm J}$, whose extended atmosphere is eroding. Previous observations showed evidence for water vapour an
Externí odkaz:
http://arxiv.org/abs/2311.12515
Autor:
Barrado, David, Mollière, Paul, Patapis, Polychronis, Min, Michiel, Tremblin, Pascal, Martinez, Francisco Ardevol, Whiteford, Niall, Vasist, Malavika, Argyriou, Ioannis, Samland, Matthias, Lagage, Pierre-Olivier, Decin, Leen, Waters, Rens, Henning, Thomas, Morales-Calderón, María, Guedel, Manuel, Vandenbussche, Bart, Absil, Olivier, Baudoz, Pierre, Boccaletti, Anthony, Bouwman, Jeroen, Cossou, Christophe, Coulais, Alain, Crouzet, Nicolas, Gastaud, René, Glasse, Alistair, Glauser, Adrian M., Kamp, Inga, Kendrew, Sarah, Krause, Oliver, Lahuis, Fred, Mueller, Michael, Olofsson, Göran, Pye, John, Rouan, Daniel, Royer, Pierre, Scheithauer, Silvia, Waldmann, Ingo, Colina, Luis, van Dishoeck, Ewine F., Ray, Tom, Östlin, Göran, Wright, Gillian
Brown dwarfs serve as ideal laboratories for studying the atmospheres of giant exoplanets on wide orbits as the governing physical and chemical processes in them are nearly identical. Understanding the formation of gas giant planets is challenging, o
Externí odkaz:
http://arxiv.org/abs/2311.08054
Akademický článek
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Multiple interval graphs are a well-known generalization of interval graphs introduced in the 1970s to deal with situations arising naturally in scheduling and allocation. A $d$-interval is the union of $d$ intervals on the real line, and a graph is
Externí odkaz:
http://arxiv.org/abs/2309.11908
Publikováno v:
A&A 678, A111 (2023)
Despite their relatively high intrinsic brightness and the fact that they are more numerous than younger OB stars and kinematically colder than older red giants, A-type stars have rarely been used as Galactic tracers. They may, in fact, be used to fi
Externí odkaz:
http://arxiv.org/abs/2308.01901