Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Joanna M. Brown"'
Autor:
Markus Schmalzl, Simon Bruderer, Ewine F. van Dishoeck, Nienke van der Marel, Vincent Geers, Tim A. van Kempen, Til Birnstiel, Paola Pinilla, G. S. Mathews, Cornelis P. Dullemond, Joanna M. Brown, Gregory J. Herczeg
Publikováno v:
Proceedings of the International Astronomical Union. 8:90-93
Planet formation and clearing of protoplanetary disks is one of the long standing problems in disk evolution theory. The best test of clearing scenarios is observing systems that are most likely to be actively forming planets: the transitional disks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0986d285214d31548ad6cb887d766d9
https://doi.org/10.1017/s1743921313007989
https://doi.org/10.1017/s1743921313007989
Autor:
Klaus M. Pontoppidan, Fred Lahuis, Lori Allen, A. Crapsi, T. Huard, Helen J. Fraser, T. Y. Brooke, David W. Koerner, Vincent Geers, Lee G. Mundy, Karl R. Stapelfeldt, G. A. Blake, Jacqueline E. Kessler-Silacci, C. Knez, D. L. Padgett, Adwin Boogert, J. C. Augereau, Neal J. Evans, Karin I. Öberg, E. F. van Dishoeck, Paul M. Harvey, S. E. Bisschop, A. I. Sargent, Sandrine Bottinelli, Jes K. Jørgensen, Joanna M. Brown
Publikováno v:
The Astrophysical Journal. 678:985-1004
With the goal to study the physical and chemical evolution of ices in solar-mass systems, a spectral survey is conducted of a sample of 41 low luminosity YSOs using 3-38 um Spitzer and ground-based spectra. The long-known 6.0 and 6.85 um bands are de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74f3e0392c72ce10cc971d5b32c552aa
https://doi.org/10.1086/533425
https://doi.org/10.1086/533425
Publikováno v:
The Astrophysical Journal. 675:L109-L112
Mid-infrared spectrophotometric observations have revealed a small subclass of circumstellar disks with spectral energy distributions (SEDs) suggestive of large inner gaps with low dust content. However, such data provide only an indirect and model-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::470bd9f4798bc714f07a3f4a0b71bd44
https://doi.org/10.1086/533464
https://doi.org/10.1086/533464
Publikováno v:
The Astrophysical Journal. 655:L105-L108
We report the detection of CO rovibrational emission from the transitional disks around the T Tauri stars TW Hya and GM Aur. Transitional disks are characterized by significant mid- to far-infrared (IR) dust emission combined with a relative deficit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d30de59eaf9e1147d3bee01c689a5bc0
https://doi.org/10.1086/512012
https://doi.org/10.1086/512012
Autor:
Masayuki Kuzuhara, Joseph C. Carson, Thomas Henning, Miki Ishii, Shoken Miyama, D. Tomono, Sebastian Egner, Nagayoshi Ohashi, Tae-Soo Pyo, Satoshi Mayama, Carol A. Grady, Olivier Guyon, Ruobing Dong, Yasuhiro H. Takahashi, Markus Janson, Taro Matsuo, Edwin L. Turner, Thayne Currie, Nobuhiko Kusakabe, Makoto Watanabe, Motohide Tamura, Ryo Kandori, Toru Yamada, Masahiko Hayashi, Klaus W. Hodapp, Zhaohuan Zhu, Takayuki Muto, Michihiro Takami, Ryuji Suzuki, Hideki Takami, Christian Thalmann, Saeko S. Hayashi, Kyle Mede, Joanna M. Brown, Jungmi Kwon, Wolfgang Brandner, Yutaka Hayano, Jun-Ichi Morino, Hiroshi Terada, Timothy D. Brandt, Masanori Iye, Tomoyuki Kudo, Gene Serabyn, Naruhisa Takato, Lyu Abe, Tomonori Usuda, Tetsuro Nishimura, Eiji Akiyama, Gillian R. Knapp, Hiroshi Suto, Markus Feldt, John P. Wisniewski, Amaya Moro-Martin, Takashi Tsukagoshi, Jun Hashimoto, Takuya Suenaga, Michael W. McElwain
Publikováno v:
Astrophysical Journal, 799(1):43. IOP Publishing Ltd.
The formation scenario of a gapped disk, i.e., transitional disk, and its asymmetry is still under debate. Proposed scenarios such as disk-planet interaction, photoevaporation, grain growth, anticyclonic vortex, eccentricity, and their combinations w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02a44a0123ccdfa69d46fe6e9fc5d201
https://dare.uva.nl/personal/pure/en/publications/the-structure-of-pretransitional-protoplanetary-disks-ii-azimuthal-asymmetries-different-radial-distributions-of-large-and-small-dust-grains-in-pds-70(d139be8a-ddea-486e-a9ca-b5b8fdb60e31).html
https://dare.uva.nl/personal/pure/en/publications/the-structure-of-pretransitional-protoplanetary-disks-ii-azimuthal-asymmetries-different-radial-distributions-of-large-and-small-dust-grains-in-pds-70(d139be8a-ddea-486e-a9ca-b5b8fdb60e31).html
Autor:
Joanna M. Brown, Alexander Brown
Publikováno v:
The Astrophysical Journal. 638:L37-L40
The flaring behavior of active RS CVn binaries has been studied extensively at centimeter wavelengths, but very little has been published concerning RS CVn flares in the millimeter region, where the nonthermal gyrosynchrotron emission is much more li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8ce8ec716f33427f875519366377c2f
https://doi.org/10.1086/500929
https://doi.org/10.1086/500929
Autor:
Lori Allen, Phil Myers, T. Y. Brooke, Vincent Geers, Fred Lahuis, Jean-Charles Augereau, E. F. van Dishoeck, Alberto Noriega-Crespo, Karl R. Stapelfeldt, Paul M. Harvey, Joanna M. Brown, Geoffrey A. Blake, D. Padgett, C. Knez, Klaus M. Pontoppidan, Adwin Boogert, A. I. Sargent, C. P. Dullemond, Fredrik L. Schöier, Jacqueline E. Kessler-Silacci, David W. Koerner, Lee G. Mundy, Patrick W. Morris, Michiel R. Hogerheijde, Neal J. Evans, Jes K. Jørgensen
Publikováno v:
Astrophysical journal supplement series, 154(1), 359-362. IOP PUBLISHING LTD
Sensitive 5-38 um Spitzer Space Telescope (SST) and ground based 3-5 um spectra of the embedded low mass protostars B5 IRS1 and HH46 IRS show deep ice absorption bands superposed on steeply rising mid-infrared continua. The ices likely originate in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4589403d5cb91547f4c564ba836ded1a
https://doi.org/10.1086/422556
https://doi.org/10.1086/422556
Autor:
Evan A. Rich, Yi Yang, Michihiro Takami, Shin Koyamatsu, Ruobing Dong, Takashi Tsukagoshi, Mayama Satoshi, Nienke van der Marel, Jun Hashimoto, Simon Bruderer, Eugene Chiang, Hauyu Baobab Liu, John P. Wisniewski, Eiji Akiyama, Takayuki Muto, Gillian R. Knapp, Nagayoshi Ohashi, Motohide Tamura, Zhaohuan Zhu, Joanna M. Brown, Tomoyuki Kudo
Publikováno v:
The Astrophysical Journal. 836:201
We report ALMA Cycle 2 observations of 230 GHz (1.3 mm) dust continuum emission, and $^{12}$CO, $^{13}$CO, and C$^{18}$O J = 2-1 line emission, from the Upper Scorpius transitional disk [PZ99] J160421.7-213028, with an angular resolution of ~0".25 (3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::053b9fbae2108b0b7d67e5710c0b8290
https://doi.org/10.3847/1538-4357/aa5abf
https://doi.org/10.3847/1538-4357/aa5abf
Autor:
Ewine F. van Dishoeck, Gregory J. Herczeg, Evgenya L. Shkolnik, Adam L. Kraus, Michael C. Liu, Munan Gong, Katelyn N. Allers, Yao Liu, Joanna M. Brown
Publikováno v:
Astronomy & Astrophysics, 573, A63
We conducted Herschel/PACS observations of five very low-mass stars or brown dwarfs located in the TW Hya association with the goal of characterizing the properties of disks in the low stellar mass regime. We detected all five targets at $70\,\mu{\rm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56538416a0f50bef835d90dfd86c67c5
http://arxiv.org/abs/1411.1858
http://arxiv.org/abs/1411.1858
The study of young stars no longer surrounded by disks can greatly add to our understanding of how protoplanetary disks evolve and planets form. We have used VLT/FLAMES optical spectroscopy to confirm the youth and membership of 19 new young diskless
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::905ae85d18fc2ca0b927fc2a5c7d2d9d
http://arxiv.org/abs/1308.2967
http://arxiv.org/abs/1308.2967