Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Christiaens,Valentin"'
Autor:
Calcino, Josh, Price, Daniel J., Hilder, Thomas, Christiaens, Valentin, Speedie, Jessica, Ormel, Chris W.
Late-stage infall onto evolved protoplanetary discs is an important source of material and angular momentum replenishment, and disc substructures. In this paper we used 3D smoothed particle hydrodynamics simulations to model streamer-disc interaction
Externí odkaz:
http://arxiv.org/abs/2410.18521
Autor:
Cantalloube, Faustine, Christiaens, Valentin, Mitjans, Carles Cantero, Cioppa, Anthony, Nasedkin, Evert, Absil, Olivier, Delorme, Philippe, Wang, Jason J., Bonse, Markus J., Daglayan, Hazan, Dahlqvist, Carl-Henrik, Guyot, Nathan, Juillard, Sandrine, Mazoyer, Johan, Samland, Matthias, Sabalbal, Mariam, Ruffio, Jean-Baptiste, Van Droogenbroeck, Marc
In this communication, we report on the results of the second phase of the Exoplanet Imaging Data Challenge started in 2019. This second phase focuses on the characterization of point sources (exoplanet signals) within multispectral high-contrast ima
Externí odkaz:
http://arxiv.org/abs/2410.17636
Autor:
Daglayan, Hazan, Vary, Simon, Absil, Olivier, Cantalloube, Faustine, Christiaens, Valentin, Gillis, Nicolas, Jacques, Laurent, Leplat, Valentin, Absil, P. -A.
Effective image post-processing algorithms are vital for the successful direct imaging of exoplanets. Standard PSF subtraction methods use techniques based on a low-rank approximation to separate the rotating planet signal from the quasi-static speck
Externí odkaz:
http://arxiv.org/abs/2410.06310
Autor:
Schwarz, Kamber R., Samland, Matthias, Olofsson, Göran, Henning, Thomas, Sellek, Andrew, Güdel, Manuel, Tabone, Benoît, Kamp, Inga, Lagage, Pierre-Olivier, van Dishoeck, Ewine F., Garatti, Alessio Caratti o, Glauser, Adrian M., Ray, Tom P., Arabhavi, Aditya M., Christiaens, Valentin, Franceschi, Riccardo, Gasman, Danny, Grant, Sierra L., Kanwar, Jayatee, Kaeufer, Till, Kurtovic, Nicolas T., Perotti, Giulia, Temmink, Milou, Vlasblom, Marissa
The removal of angular momentum from protostellar systems drives accretion onto the central star and may drive the dispersal of the protoplanetary disk. Winds and jets can contribute to removing angular momentum from the disk, though the dominant pro
Externí odkaz:
http://arxiv.org/abs/2409.11176
Autor:
Jang, Hyerin, Waters, Rens, Kaeufer, Till, Tamanai, Akemi, Perotti, Giulia, Christiaens, Valentin, Kamp, Inga, Henning, Thomas, Min, Michiel, Arabhavi, Aditya M., Barrado, David, van Dishoeck, Ewine F., Gasman, Danny, Grant, Sierra L., Güdel, Manuel, Lagage, Pierre-Olivier, Lahuis, Fred, Schwarz, Kamber, Tabone, Benoît, Temmink, Milou
The inner disk of the young star PDS 70 may be a site of rocky planet formation, with two giant planets detected further out. Solids in the inner disk may inform us about the origin of this inner disk water and nature of the dust in the rocky planet-
Externí odkaz:
http://arxiv.org/abs/2408.16367
Autor:
Wallack, Nicole L., Ruffio, Jean-Baptiste, Ruane, Garreth, Ren, Bin B., Xuan, Jerry W., Villenave, Marion, Mawet, Dimitri, Stapelfeldt, Karl, Wang, Jason J., Liu, Michael C., Absil, Olivier, Alvarez, Carlos, Bae, Jaehan, Bond, Charlotte, Bottom, Michael, Calvin, Benjamin, Choquet, Élodie, Christiaens, Valentin, Cook, Therese, Castellá, Bruno Femenía, Gonzalez, Carlos Gomez, Guidi, Greta, Huby, Elsa, Kastner, Joel, Knutson, Heather A., Meshkat, Tiffany, Ngo, Henry, Ragland, Sam, Reggiani, Maddalena, Ricci, Luca, Serabyn, Eugene, Uyama, Taichi, Williams, Jonathan P., Wizinowich, Peter, Zawol, Zoe, Zhang, Shangjia, Zhu, Zhaohuan
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations of protoplanetary disks in the millimeter continuum have shown a variety of radial gaps, cavities, and spiral features. These substructures may be signposts for ongoing planet fo
Externí odkaz:
http://arxiv.org/abs/2408.04048
Autor:
Kanwar, Jayatee, Kamp, Inga, Jang, Hyerin, Waters, L. B. F. M., van Dishoeck, Ewine F., Christiaens, Valentin, Arabhavi, Aditya M., Henning, Thomas, Güdel, Manuel, Woitke, Peter, Absil, Olivier, Barrado, David, Garatti, Alessio Caratti o, Glauser, Adrian M., Lahuis, Fred, Scheithauer, Silvia, Vandenbussche, Bart, Gasman, Danny, Grant, Sierra L., Kurtovic, Nicolas T., Perotti, Giulia, Tabone, Benoît, Temmink, Milou
Publikováno v:
A&A 689, A231 (2024)
With the advent of JWST, we acquire unprecedented insights into the physical and chemical structure of the inner regions of planet-forming disks where terrestrial planet formation occurs. The very low-mass stars (VLMS) are known to have a high occurr
Externí odkaz:
http://arxiv.org/abs/2407.14362
Publikováno v:
A&A 688, A185 (2024)
High-contrast imaging (HCI) is a technique designed to observe faint signals near bright sources, such as exoplanets and circumstellar disks. The primary challenge in revealing the faint circumstellar signal near a star is the presence of quasi-stati
Externí odkaz:
http://arxiv.org/abs/2406.14444
Autor:
Grant, Sierra L., Kurtovic, Nicolas T., van Dishoeck, Ewine F., Henning, Thomas, Kamp, Inga, Nowacki, Hugo, Perraut, Karine, Banzatti, Andrea, Temmink, Milou, Christiaens, Valentin, Samland, Matthias, Gasman, Danny, Tabone, Benoît, Güdel, Manuel, Lagage, Pierre-Olivier, Arabhavi, Aditya M., Barrado, David, Garatti, Alessio Caratti o, Glauser, Adrian M., Jang, Hyerin, Kanwar, Jayatee, Lahuis, Fred, Morales-Calderón, Maria, Olofsson, Göran, Perotti, Giulia, Schwarz, Kamber, Vlasblom, Marissa, Lopez, Rebeca Garcia, Long, Feng
Publikováno v:
A&A 689, A85 (2024)
Most stars form in multiple systems whose properties can significantly impact circumstellar disk evolution. We investigate the physical and chemical properties of the equal-mass, small separation (~66 mas, ~9 au) DF Tau binary system. Previous observ
Externí odkaz:
http://arxiv.org/abs/2406.10217
Autor:
Bonse, Markus J., Gebhard, Timothy D., Dannert, Felix A., Absil, Olivier, Cantalloube, Faustine, Christiaens, Valentin, Cugno, Gabriele, Garvin, Emily O., Hayoz, Jean, Kasper, Markus, Matthews, Elisabeth, Schölkopf, Bernhard, Quanz, Sascha P.
The main challenge of exoplanet high-contrast imaging (HCI) is to separate the signal of exoplanets from their host stars, which are many orders of magnitude brighter. HCI for ground-based observations is further exacerbated by speckle noise originat
Externí odkaz:
http://arxiv.org/abs/2406.01809