Zobrazeno 1 - 10
of 446
pro vyhledávání: '"Hogerheijde, M. R."'
Autor:
Garufi, A., Ginski, C., van Holstein, R. G., Benisty, M., Manara, C. F., Pérez, S., Pinilla, P., Ribas, Á., Weber, P., Williams, J., Cieza, L., Dominik, C., Facchini, S., Huang, J., Zurlo, A., Bae, J., Hagelberg, J., Henning, Th., Hogerheijde, M. R., Janson, M., Ménard, F., Messina, S., Meyer, M. R., Pinte, C., Quanz, S. P., Rigliaco, E., Roccatagliata, V., Schmid, H. M., Szulágyi, J., van Boekel, R., Wahhaj, Z., Antichi, J., Baruffolo, A., Moulin, T.
The sample of planet-forming disks observed by high-contrast imaging campaigns over the last decade is mature enough to enable the demographical analysis of individual star-forming regions. We present the full census of Taurus sources with VLT/SPHERE
Externí odkaz:
http://arxiv.org/abs/2403.02158
Autor:
Drevon, J., Millour, F., Cruzalèbes, P., Paladini, C., Scicluna, P., Matter, A., Chiavassa, A., Montargès, M., Cannon, E., Allouche, F., Hofmann, K. -H., Lagarde, S., Lopez, B., Meilland, A., Petrov, R., Robbe-Dubois, S., Schertl, D., Abraham, G. Zins P., Berio, P., Hron, Th. Henningm J., Isbell, J. W., Jaffe, W., Labadie, L., Varga, J., Weigelt, G., Woillez, J., van Boekel, R., Danchi, E. Pantin W. C., de Koter, A., Rosas, V. Gamez, Hogerheijde, M. R., Leftley, J., Stee, P., Waters, R.
From Nov. 2019 to May 2020, the red supergiant star Betelgeuse experienced an unprecedented drop of brightness in the visible domain called the great dimming event. Large atmospheric dust clouds and large photospheric convective features are suspecte
Externí odkaz:
http://arxiv.org/abs/2401.12404
Autor:
Stapper, L. M., Hogerheijde, M. R., van Dishoeck, E. F., Lin, L., Ahmadi, A., Booth, A. S., Grant, S. L., Immer, K., Leemker, M., Pérez-Sánchez, A. F.
The total disk mass sets the formation potential for exoplanets. Carbon-monoxide (CO) has been used as a gas mass tracer in T Tauri disks, but was found to be less abundant than expected due to freeze-out and chemical conversion of CO on the surfaces
Externí odkaz:
http://arxiv.org/abs/2312.03835
Autor:
Yoffe, Gideon, van Boekel, Roy, Li, Aigen, Waters, L. B. F. M, Maaskant, Koen, Siebenmorgen, Ralf, Ancker, Mario van den, de la Roche, D. J. M Petit dit, Lopez, Bruno, Matter, Alexis, Varga, Jozsef, Hogerheijde, M. R, Weigelt, Gerd, Oudmaijer, R. D, Pantin, Eric, Meyer, M. R, Augereau, Jean-Charles, Henning, Thomas
Publikováno v:
A&A 674, A57 (2023)
We use the long-slit spectroscopy mode of the VISIR-NEAR experiment to perform diffraction-limited observations of eight nearby Herbig Ae protoplanetary disks. We extract spectra for various locations along the slit with a spectral resolution of R =
Externí odkaz:
http://arxiv.org/abs/2303.06592
Autor:
Leemker, M., Booth, A. S., van Dishoeck, E. F., van der Marel, N., Tabone, B., Ligterink, N. F. W., Brunken, N. G. C., Hogerheijde, M. R.
Publikováno v:
A&A 673, A7 (2023)
[Abridged] Most well-resolved disks observed with ALMA show signs of dust traps. These dust traps set the chemical composition of the planet forming material in these disks, as the dust grains with their icy mantles are trapped at specific radii and
Externí odkaz:
http://arxiv.org/abs/2303.00768
Publikováno v:
A&A 669, A158 (2023)
Herbig stars can be classified into group I and group II depending on the shape of the far-IR excess from the spectral energy distribution. This separation may be evolutionary and related to the vertical structure of these disks. We aim to determine
Externí odkaz:
http://arxiv.org/abs/2211.12532
Autor:
van Scheltinga, J. Terwisscha, Ligterink, N. F. W., Bosman, A. D., Hogerheijde, M. R., Linnartz, H.
Publikováno v:
A&A 666, A35 (2022)
[Abridged] Observations of protoplanetary disks suggest that they are depleted in gas-phase CO. It has been posed that gas-phase CO is chemically consumed and converted into less volatile species through gas-grain processes. Observations of interstel
Externí odkaz:
http://arxiv.org/abs/2208.13789
Autor:
Pirovano, L. M., Fedele, D., van Dishoeck, E. F., Hogerheijde, M. R., Lodato, G., Bruderer, S.
[Abridged] Far-infrared observations with Herschel revealed a surprisingly low abundance of cold-water reservoirs in protoplanetary discs. On the other hand, a handful of discs show emission of hot water transitions excited at temperatures above a fe
Externí odkaz:
http://arxiv.org/abs/2207.10744
Autor:
Leemker, M., Booth, A. S., van Dishoeck, E. F., Pérez-Sánchez, A. F., Szulágyi, J., Bosman, A. D., Bruderer, S., Facchini, S., Hogerheijde, M. R., Paneque-Carreño, T., Sturm, J. A.
Publikováno v:
A&A 663, A23 (2022)
[Abridged] Most disks observed at high angular resolution show substructures. Knowledge about the gas surface density and temperature is essential to understand these. The aim of this work is to constrain the gas temperature and surface density in tw
Externí odkaz:
http://arxiv.org/abs/2204.03666
Measuring the gas mass of protoplanetary disks, the reservoir available for giant planet formation, has proven to be difficult. We currently lack a far-infrared observatory capable of observing HD, and the most common gas mass tracer, CO, suffers fro
Externí odkaz:
http://arxiv.org/abs/2201.09900