Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Anusha Kalyaan"'
Autor:
Klaus M. Pontoppidan, Colette Salyk, Andrea Banzatti, Ke Zhang, Ilaria Pascucci, Karin I. Öberg, Feng Long, Carlos E. Romero-Mirza, John Carr, Joan Najita, Geoffrey A. Blake, Nicole Arulanantham, Sean Andrews, Nicholas P. Ballering, Edwin Bergin, Jenny Calahan, Douglas Cobb, Maria Jose Colmenares, Annie Dickson-Vandervelde, Anna Dignan, Joel Green, Phoebe Heretz, Gregory Herczeg, Anusha Kalyaan, Sebastiaan Krijt, Tyler Pauly, Paola Pinilla, Leon Trapman, Chengyan Xie
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 158 (2024)
The JWST Disk Infrared Spectral Chemistry Survey (JDISCS) aims to understand the evolution of the chemistry of inner protoplanetary disks using the Mid-InfraRed Instrument (MIRI) on the James Webb Space Telescope (JWST). With a growing sample of >30
Externí odkaz:
https://doaj.org/article/9fce91bfb7f74aada1b295364f3e3013
Autor:
Chengyan Xie, Ilaria Pascucci, Feng Long, Klaus M. Pontoppidan, Andrea Banzatti, Anusha Kalyaan, Colette Salyk, Yao Liu, Joan R. Najita, Paola Pinilla, Nicole Arulanantham, Gregory J. Herczeg, John Carr, Edwin A. Bergin, Nicholas P. Ballering, Sebastiaan Krijt, Geoffrey A. Blake, Ke Zhang, Karin I. Öberg, Joel D. Green, the JDISCS collaboration
Publikováno v:
The Astrophysical Journal Letters, Vol 959, Iss 2, p L25 (2023)
We present an analysis of the JDISCS JWST/MIRI-MRS spectrum of Sz 114, an accreting M5 star surrounded by a large dust disk with a shallow gap at ∼39 au. The spectrum is molecule-rich; we report the detection of water, CO, CO _2 , HCN, C _2 H _2 ,
Externí odkaz:
https://doaj.org/article/eec4a68c8b8244d8a00e7ea02fbf42c7
Autor:
Andrea Banzatti, Klaus M. Pontoppidan, John S. Carr, Evan Jellison, Ilaria Pascucci, Joan R. Najita, Carlos E. Muñoz-Romero, Karin I. Öberg, Anusha Kalyaan, Paola Pinilla, Sebastiaan Krijt, Feng Long, Michiel Lambrechts, Giovanni Rosotti, Gregory J. Herczeg, Colette Salyk, Ke Zhang, Edwin A. Bergin, Nicholas P. Ballering, Michael R. Meyer, Simon Bruderer, The JDISCS Collaboration
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 2, p L22 (2023)
Previous analyses of mid-infrared water spectra from young protoplanetary disks observed with the Spitzer-IRS found an anticorrelation between water luminosity and the millimeter dust disk radius observed with ALMA. This trend was suggested to be evi
Externí odkaz:
https://doaj.org/article/d8affe53ce974ba98c7961ca36da0b0c
Autor:
Anusha Kalyaan, Paola Pinilla, Sebastiaan Krijt, Andrea Banzatti, Giovanni Rosotti, Gijs D. Mulders, Michiel Lambrechts, Feng Long, Gregory J. Herczeg
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 1, p 66 (2023)
Substructures in protoplanetary disks can act as dust traps that shape the radial distribution of pebbles. By blocking the passage of pebbles, the presence of gaps in disks may have a profound effect on pebble delivery into the inner disk, crucial fo
Externí odkaz:
https://doaj.org/article/e034448eda434d4aaddbff0fb309e05e
Publikováno v:
Experimental Astronomy. 45:57-79
Ground layer turbulence is a very important site characterization parameter used to assess the quality of an astronomical site. The Lunar Scintillometer is a simple and effective site-testing device for measuring the ground layer turbulence. It consi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bdb1435ee1a32ba63bb4fae311d7656
https://doi.org/10.1007/s10686-017-9567-9
https://doi.org/10.1007/s10686-017-9567-9
Publikováno v:
The Astrophysical Journal. 921:84
Millimeter continuum imaging of protoplanetary disks reveals the distribution of solid particles and the presence of substructures (gaps and rings) beyond 5-10 au, while infrared (IR) spectra provide access to abundances of gaseous species at smaller
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0996889febeffefd24f4091ea7702d43
https://doi.org/10.3847/1538-4357/ac1e96
https://doi.org/10.3847/1538-4357/ac1e96
Autor:
Christopher Groppi, Mark Rubin, Hilairy E. Hartnett, Anusha Kalyaan, Alexander Spacek, Nathan Smith, Rebecca Jackson, Pye Pye Zaw, Amanda Truitt, Luke Probst, Peter Nguyen, Heather Singleton, Perry B. Vargas, Steven J. Desch
Publikováno v:
Earth's Future. 5:107-127
As the Earth's climate has changed, Arctic sea ice extent has decreased drastically. It is likely that the late-summer Arctic will be ice-free as soon as the 2030s. This loss of sea ice represents one of the most severe positive feedbacks in the clim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9671f36ba7a51bb7bd83dafd0a337692
https://doi.org/10.1002/2016ef000410
https://doi.org/10.1002/2016ef000410
Autor:
Anusha Kalyaan, Steven J. Desch
The snow line in a protoplanetary disk demarcates regions with H$_2$O ice from regions with H$_2$O vapor. Where a planet forms relative to this location determines how much water and other volatiles it forms with. Giant planet formation may be trigge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e3e8d934a7774e94a75074049db32e
http://arxiv.org/abs/1903.06746
http://arxiv.org/abs/1903.06746
We present a comprehensive evolutionary model of the Sun's protoplanetary disk, constructed to resolve the "CAI Storage" problem of meteoritics. We predict the abundances of calcium-rich, aluminum-rich inclusions (CAIs) and refractory lithophile elem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06c860aaaa7cf350d36f938501978475
http://arxiv.org/abs/1710.03809
http://arxiv.org/abs/1710.03809
Quantification of the radial transport of gaseous species and solid particles is important to many applications in protoplanetary disk evolution. An especially important example is determining the location of the water snow lines in a disk, which req
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1361a3268495ba12bf637be6f17759f
http://arxiv.org/abs/1704.01267
http://arxiv.org/abs/1704.01267