Zobrazeno 1 - 10
of 10 812
pro vyhledávání: '"Herbig Ae"'
Autor:
Anilkumar, Hema, Mathew, Blesson, Jithesh, V., Kartha, Sreeja S., Manoj, P., Narang, Mayank, Chavali, Mahathi
Herbig Ae/Be (HAeBe) stars are intermediate-mass pre-main sequence stars, characterized by infrared excess and emission lines. They are observed to emit X-rays, whose origin is a matter of discussion and not settled yet. X-ray emission is not expecte
Externí odkaz:
http://arxiv.org/abs/2404.03403
Autor:
Booth, Alice S., Leemker, Margot, van Dishoeck, Ewine F., Evans, Lucy, Ilee, John D., Kama, Mihkel, Keyte, Luke, Law, Charles J., van der Marel, Nienke, Nomura, Hideko, Notsu, Shota, Öberg, Karin, Temmink, Milou, Walsh, Catherine
Observations of disks with the Atacama Large Millimeter/submillimeter Array (ALMA) allow us to map the chemical makeup of nearby protoplanetary disks with unprecedented spatial resolution and sensitivity. The typical outer Class II disk observed with
Externí odkaz:
http://arxiv.org/abs/2402.04001
Autor:
Booth, Alice S., Temmink, Milou, van Dishoeck, Ewine F., Evans, Lucy, Ilee, John D., Kama, Mihkel, Keyte, Luke, Law, Charles J., Leemker, Margot, van der Marel, Nienke, Nomura, Hideko, Notsu, Shota, Öberg, Karin, Walsh, Catherine
The Atacama Large Millimeter/submillimeter Array (ALMA) can probe the molecular content of planet-forming disks with unprecedented sensitivity. These observations allow us to build up an inventory of the volatiles available for forming planets and co
Externí odkaz:
http://arxiv.org/abs/2402.04002
Autor:
Bouarour, Y. -I., Lopez, R. Garcia, Sanchez-Bermudez, J., Garatti, A. Caratti o, Perraut, K., Aimar, N., Amorim, A., Berger, J. -P., Bourdarot, G., Brandner, W., Clénet, Y., de Zeeuw, P. T., Dougados, C., Drescher, A., Eckart, A., Eisenhauer, F., Flock, M., Garcia, P., Gendron, E., Genzel, R., Gillessen, S., Grant, S., Heißel, G., Henning, Th., Jocou, L., Kervella, P., Labadie, L., Lacour, S., Lapeyrère, V., Bouquin, J. -B. Le, Léna, P., Linz, H., Lutz, D., Mang, F., Nowacki, H., Ott, T., Paumard, T., Perrin, G., Pineda, J. E., Ribeiro, D. C., Bordoni, M. Sadun, Shangguan, J., Shimizu, T., Soulain, A., Straubmeier, C., Sturm, E., Tacconi, L., Vincent, F.
We aim to investigate the origin of the HI Br$\gamma$ emission in young stars by using GRAVITY to image the innermost region of circumstellar disks, where important physical processes such as accretion and winds occur. With high spectral and angular
Externí odkaz:
http://arxiv.org/abs/2312.08819
Autor:
Grant, Sierra L., Stapper, Lucas M., Hogerheijde, Michiel R., van Dishoeck, Ewine F., Brittain, Sean, Vioque, Miguel
The accretion of material from protoplanetary disks onto their central stars is a fundamental process in the evolution of these systems and a key diagnostic in constraining the disk lifetime. We analyze the relationship between the stellar accretion
Externí odkaz:
http://arxiv.org/abs/2308.11430
We study a sample of 119 Herbig Ae/Be stars in the Galactic anti-center direction using the spectroscopic data from Large sky Area Multi-Object fiber Spectroscopic Telescope (LAMOST) survey program. Emission lines of hydrogen belonging to the Balmer
Externí odkaz:
http://arxiv.org/abs/2307.02917
Autor:
Arun, R., Mathew, Blesson, Manoj, P., Maheswar, G., Shridharan, B., Kartha, Sreeja S., Narang, Mayank
This study presents the largest mid-infrared spectral catalog of Herbig Ae/Be stars to date, containing the Spitzer Infrared Spectrograph spectra of 126 stars. Based on the catalog analysis, two prominent infrared vibrational modes of C\textsubscript
Externí odkaz:
http://arxiv.org/abs/2305.09491
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:
Pogodin, Mikhail1 mikhailpogodin@mail.ru, Drake, Natalia2,3 natalia.drake.2008@gmail.com, Beskrovnaya, Nina1 beskrovnaya@yahoo.com, Pavlovskiy, Sergei1 sergpavlovsky@gmail.com, Hubrig, Swetlana4 shubrig@aip.de, Schöller, Markus5 sjarvinen@aip.de, Järvinen, Silva4 mschoell@eso.org, Kozlova, Olesya6 sjarvinen@aip.de, Alekseev, Ilya6 oles_kozlova@mail.ru
Publikováno v:
Universe (2218-1997). Dec2021, Vol. 7 Issue 12, p1-16. 16p.
Herbig Ae/Be stars are intermediate-mass pre-main sequence stars undergoing accretion through their circumstellar disk. The optical and infrared (IR) spectra of HAeBe stars show HI emission lines belonging to Balmer, Paschen and Brackett series. We u
Externí odkaz:
http://arxiv.org/abs/2303.11182