Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Beck, Tracy. L"'
Autor:
Pascucci, Ilaria, Beck, Tracy L., Cabrit, Sylvie, Bajaj, Naman S., Edwards, Suzan, Louvet, Fabien, Najita, Joan, Skinner, Bennett N., Gorti, Uma, Salyk, Colette, Brittain, Sean D., Krijt, Sebastiaan, Page, James Muzerolle, Ruaud, Maxime, Schwarz, Kamber, Semenov, Dmitry, Duchene, Gaspard, Villenave, Marion
Radially extended disk winds could be the key to unlocking how protoplanetary disks accrete and how planets form and migrate. A distinctive characteristic is their nested morphology of velocity and chemistry. Here we report JWST/NIRSpec spectro-imagi
Externí odkaz:
http://arxiv.org/abs/2410.18033
Autor:
Gressier, Amélie, Espinoza, Néstor, Allen, Natalie H., Sing, David K., Banerjee, Agnibha, Barstow, Joanna K., Valenti, Jeff A., Lewis, Nikole K., Birkmann, Stephan M., Challener, Ryan C., Manjavacas, Elena, de Oliveira, Catarina Alves, Crouzet, Nicolas, Beck, Tracy. L
Detecting atmospheres around planets with a radius below 1.6 R$_{\oplus}$, commonly referred to as rocky planets (Rogers_2015, Rogers_2021), has proven to be challenging. However, rocky planets orbiting M-dwarfs are ideal candidates due to their favo
Externí odkaz:
http://arxiv.org/abs/2408.15855
Autor:
Sing, David K., Rustamkulov, Zafar, Thorngren, Daniel P., Barstow, Joanna K., Tremblin, Pascal, de Oliveira, Catarina Alves, Beck, Tracy L., Birkmann, Stephan M., Challener, Ryan C., Crouzet, Nicolas, Espinoza, Néstor, Ferruit, Pierre, Giardino, Giovanna, Gressier, Amélie, Lee, Elspeth K. H., Lewis, Nikole K., Maiolino, Roberto, Manjavacas, Elena, Rauscher, Bernard J., Sirianni, Marco, Valenti, Jeff A.
Observations of transiting gas giant exoplanets have revealed a pervasive depletion of methane, which has only recently been identified atmospherically. The depletion is thought to be maintained by disequilibrium processes such as photochemistry or m
Externí odkaz:
http://arxiv.org/abs/2405.11027
Autor:
Fahrion, Katja, Böker, Torsten, Perna, Michele, Beck, Tracy L., Maiolino, Roberto, Arribas, Santiago, Bunker, Andrew J., Charlot, Stephane, Ceci, Matteo, Cresci, Giovanni, De Marchi, Guido, Lützgendorf, Nora, Ulivi, Lorenzo
Publikováno v:
A&A 687, A83 (2024)
We present a detailed study of the centre of NGC4654, a Milky Way-like spiral galaxy in the Virgo cluster that has been reported to host a double stellar nucleus, thus promising a rare view of ongoing star cluster infall into a galaxy nucleus. Analys
Externí odkaz:
http://arxiv.org/abs/2404.08910
Autor:
Arulanantham, Nicole, McClure, M. K., Pontoppidan, Klaus, Beck, Tracy L., Sturm, J. A., Harsono, D., Boogert, A. C. A., Cordiner, M., Dartois, E., Drozdovskaya, M. N., Espaillat, C., Melnick, G. J., Noble, J. A., Palumbo, M. E., Pendleton, Y. J., Terada, H., van Dishoeck, E. F.
We present JWST MIRI MRS observations of the edge-on protoplanetary disk around the young sub-solar mass star Tau 042021, acquired as part of the Cycle 1 GO program "Mapping Inclined Disk Astrochemical Signatures (MIDAS)." These data resolve the mid-
Externí odkaz:
http://arxiv.org/abs/2402.12256
Autor:
Manjavacas, Elena, Tremblin, Pascal, Birkmann, Stephan, Valenti, Jeff, de Oliveira, Catarina Alves, Beck, Tracy L., Giardino, G., Luetzgendorf, N., Rauscher, B. J., Sirianni, M.
Spectra of young benchmark brown dwarfs with well-known ages are vital to characterize other brown dwarfs, for which ages are in general not known. These spectra are also crucial to test atmospheric models which have the potential to provide detailed
Externí odkaz:
http://arxiv.org/abs/2402.04230
Ejection Patterns in the DG Tau Jet Over the Last 40 Years: Insights into Mass Accretion Variability
Publikováno v:
2024, The Astrophysical Journal, Volume 963, p159
We aim to clarify the link between mass accretion and ejection by analyzing DG Tau's jet observations from optical and near-infrared data spanning 1984 to 2019, alongside photometric variations between 1983 and 2015. We classified 12 moving knot grou
Externí odkaz:
http://arxiv.org/abs/2401.08509
Autor:
McClure, M. K., Rocha, W. R. M., Pontoppidan, K. M., Crouzet, N., Chu, L. E. U., Dartois, E., Lamberts, T., Noble, J. A., Pendleton, Y. J., Perotti, G., Qasim, D., Rachid, M. G., Smith, Z. L., Sun, Fengwu, Beck, Tracy L, Boogert, A. C. A., Brown, W. A., Caselli, P., Charnley, S. B., Cuppen, Herma M., Dickinson, H., Drozdovskaya, M. N., Egami, E., Erkal, J., Fraser, H., Garrod, R. T., Harsono, D., Ioppolo, S., Jimenez-Serra, I., Jin, M., Jørgensen, J. K., Kristensen, L. E., Lis, D. C., McCoustra, M. R. S., McGuire, Brett A., Melnick, G. J., Oberg, Karin I., Palumbo, M. E., Shimonishi, T., Sturm, J. A., van Dishoeck, E. F., Linnartz, H.
Icy grain mantles are the main reservoir of the volatile elements that link chemical processes in dark, interstellar clouds with the formation of planets and composition of their atmospheres. The initial ice composition is set in the cold, dense part
Externí odkaz:
http://arxiv.org/abs/2301.09140
Autor:
Takami, Michihiro, Guenther, Hans Moritz, Schneider, P. Christian, Beck, Tracy L., Karr, Jennifer L., Ohyama, Youichi, Galvan-Madrid, Roberto, Uyama, Taichi, White, Marc, Grankin, Konstantin, Coffey, Deirdre, Liu, Chun-Fan, Fukagawa, Misato, Manset, Nadine, Chen, Wen-Ping, Pyo, Tae-Soo, Shang, Hsien, Ray, Thomas P., Otsuka, Masaaki, Chou, Mei-Yin
We present Gemini-NIFS, VLT-SINFONI and Keck-OSIRIS observations of near-infrared [Fe II] emission associated with the well-studied jets from three active T Tauri stars; RW Aur A, RY Tau and DG Tau taken from 2012-2021. We primarily covered the redsh
Externí odkaz:
http://arxiv.org/abs/2210.10310
Autor:
Uyama, Taichi, Takami, Michihiro, Cugno, Gabriele, Deo, Vincent, Guyon, Olivier, Hashimoto, Jun, Lozi, Julien, Norris, Barnaby, Tamura, Motohide, Vievard, Sebastien, Guenther, Hans Moritz, Schneider, P. Christian, Akiyama, Eiji, Beck, Tracy L., Currie, Thayne, Hodapp, Klaus, Kwon, Jungmi, Mayama, Satoshi, Ohyama, Youichi, Pyo, Tae-Soo, Wisniewski, John P.
We present multi-epoch observations of the RY~Tau jet for H$\alpha$ and [\ion{Fe}{2}] 1.644 \micron~emission lines obtained with Subaru/SCExAO+VAMPIRES, Gemini/NIFS, and Keck/OSIRIS in 2019--2021. These data show a series of four knots within 1$\arcs
Externí odkaz:
http://arxiv.org/abs/2201.11911