Zobrazeno 1 - 10
of 332
pro vyhledávání: '"Karin I. Öberg"'
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 313 (2024)
Aromatic structures are fundamental for key biological molecules such as RNA and metabolites and the abundances of aromatic molecules on young planets are therefore of high interest. Recent detections of benzonitrile and other aromatic compounds in i
Externí odkaz:
https://doaj.org/article/3fc6307378de4c1fa9225bbf94251aa9
Autor:
Yoshihide Yamato, Yuri Aikawa, Viviana V. Guzmán, Kenji Furuya, Shota Notsu, Gianni Cataldi, Karin I. Öberg, Chunhua Qi, Charles J. Law, Jane Huang, Richard Teague, Romane Le Gal
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 83 (2024)
Characterizing the chemistry of complex organic molecules (COMs) at the epoch of planet formation provides insights into the chemical evolution of the interstellar medium (ISM) and the origin of organic materials in our solar system. We report a dete
Externí odkaz:
https://doaj.org/article/206d4c59b2254ab598434a1f8b6eb310
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 166 (2024)
The volatile inventories of planets depend on the precise partitioning of different volatiles between the gas and solid phases across the planet birth disk. For the case of hyper-volatiles (e.g., CO, N _2 , and noble gases), the partitioning also dep
Externí odkaz:
https://doaj.org/article/a650a78fad4e496db6a149f981e54d7b
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 189 (2024)
The distribution of chemical species in protoplanetary disks around young stars, especially their division between gas and solid phases, fundamentally shapes the composition of future planets and planetesimals. This distribution is likely affected by
Externí odkaz:
https://doaj.org/article/27bdb376fe5a401cba417f73cf873eb7
Autor:
Javiera K. Díaz-Berríos, Viviana V. Guzmán, Catherine Walsh, Karin I. Öberg, L. Ilsedore Cleeves, Elizabeth Artur de la Villarmois, John Carpenter
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 165 (2024)
Most stars are born in stellar clusters, and their protoplanetary disks, which are the birthplaces of planets, can, therefore, be affected by the radiation of nearby massive stars. However, little is known about the chemistry of externally irradiated
Externí odkaz:
https://doaj.org/article/d6137d2215f849568eff9bdc76b1d648
Autor:
Claudio Hernández-Vera, Viviana V. Guzmán, Elizabeth Artur de la Villarmois, Karin I. Öberg, L. Ilsedore Cleeves, Michiel R. Hogerheijde, Chunhua Qi, John Carpenter, Edith C. Fayolle
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 68 (2024)
H _2 CO is a small organic molecule widely detected in protoplanetary disks. As a precursor to grain-surface formation of CH _3 OH, H _2 CO is considered an important precursor of O-bearing organic molecules that are locked in ices. Still, since gas-
Externí odkaz:
https://doaj.org/article/976525fdf45a487daf47f915d84ba4c1
Autor:
Tomohiro C. Yoshida, Hideko Nomura, Kenji Furuya, Richard Teague, Charles J. Law, Takashi Tsukagoshi, Seokho Lee, Christian Rab, Karin I. Öberg, Ryan A. Loomis
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 63 (2024)
Recent measurements of carbon isotope ratios in both protoplanetary disks and exoplanet atmospheres have suggested a possible transfer of significant carbon isotope fractionation from disks to planets. For a clearer understanding of the isotopic link
Externí odkaz:
https://doaj.org/article/09455a1a183c4a9988f9f3f3f97c2fa2
Autor:
Charles J. Law, Myriam Benisty, Stefano Facchini, Richard Teague, Jaehan Bae, Andrea Isella, Inga Kamp, Karin I. Öberg, Bayron Portilla-Revelo, Luna Rampinelli
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 190 (2024)
PDS 70 hosts two massive, still-accreting planets and the inclined orientation of its protoplanetary disk presents a unique opportunity to directly probe the vertical gas structure of a planet-hosting disk. Here, we use high-spatial-resolution (≈0.
Externí odkaz:
https://doaj.org/article/1cc3e892ffe3483ebd027dbe4429f12e
Autor:
Carlos E. Romero-Mirza, Karin I. Öberg, Andrea Banzatti, Klaus M. Pontoppidan, Sean M. Andrews, David J. Wilner, Edwin A. Bergin, Ian Czekala, Charles J. Law, Colette Salyk, Richard Teague, Chunhua Qi, Jennifer B. Bergner, Jane Huang, Catherine Walsh, Viviana V. Guzmán, L. Ilsedore Cleeves, Yuri Aikawa, Jaehan Bae, Alice S. Booth, Gianni Cataldi, John D. Ilee, Romane Le Gal, Feng Long, Ryan A. Loomis, François Menard, Yao Liu
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 36 (2024)
We present MIRI Medium-resolution Spectrograph observations of the large, multi-gapped protoplanetary disk around the T Tauri star AS 209. The observations reveal hundreds of water vapor lines from 4.9–25.5 μ m toward the inner ∼1 au in the disk
Externí odkaz:
https://doaj.org/article/9220f739430b4e5eb0ee6051337d1018
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