Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Oberg, Karin"'
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:
http://arxiv.org/abs/2410.03574
Autor:
Banzatti, Andrea, Salyk, Colette, Pontoppidan, Klaus M., Carr, John, Zhang, Ke, Arulanantham, Nicole, Cleeves, L. Ilsedore, Krijt, Sebastiaan, Najita, Joan, Oberg, Karin I., Pascucci, Ilaria, Blake, Geoffrey A., Munoz-Romero, Carlos E., Bergin, Edwin A., Cieza, Lucas A., Pinilla, Paola, Long, Feng, Mallaney, Patrick, Xie, Chengyan, collaboration, the JDISCS
This work aims at providing fundamental general tools for the analysis of water spectra as observed in protoplanetary disks with JWST-MIRI. We analyze 25 high-quality spectra from the JDISC Survey reduced with asteroid calibrators as presented in Pon
Externí odkaz:
http://arxiv.org/abs/2409.16255
Autor:
Bergner, Jennifer B., Sturm, J. A., Piacentino, Elettra L., McClure, M. K., Oberg, Karin I., Boogert, A. C. A., Dartois, E., Drozdovskaya, M. N., Fraser, H. J., Harsono, Daniel, Ioppolo, Sergio, Law, Charles J., Lis, Dariusz C., McGuire, Brett A., Melnick, Gary J., Noble, Jennifer A., Palumbo, M. E., Pendleton, Yvonne J., Perotti, Giulia, Qasim, Danna, Rocha, W. R. M., van Dishoeck, E. F.
Planet formation is strongly influenced by the composition and distribution of volatiles within protoplanetary disks. With JWST, it is now possible to obtain direct observational constraints on disk ices, as recently demonstrated by the detection of
Externí odkaz:
http://arxiv.org/abs/2409.08117
Autor:
Xie, Chengyan, Pascucci, Ilaria, Long, Feng, Pontoppidan, Klaus M., Banzatti, Andrea, Kalyaan, Anusha, Salyk, Colette, Liu, Yao, Najita, Joan R., Pinilla, Paola, Arulanantham, Nicole, Herczeg, Gregory J., Carr, John, Bergin, Edwin A., Ballering, Nicholas P., Krijt, Sebastiaan, Blake, Geoffrey A., Zhang, Ke, Oberg, Karin I., Green, Joel D., collaboration, the JDISC
We present an analysis of the JWST/MIRI-MRS spectrum of Sz114, an accreting M5 star surrounded by a large dust disk with a gap at ~39au. The spectrum is molecular-rich: we report the detection of water, CO, CO2, HCN, C2H2, and H2. The only identified
Externí odkaz:
http://arxiv.org/abs/2310.13205
Autor:
Banzatti, Andrea, Pontoppidan, Klaus M., Carr, John, Jellison, Evan, Pascucci, Ilaria, Najita, Joan, Munoz-Romero, Carlos E., Oberg, Karin I., Kalyaan, Anusha, Pinilla, Paola, Krijt, Sebastiaan, Long, Feng, Lambrechts, Michiel, Rosotti, Giovanni, Herczeg, Gregory J., Salyk, Colette, Zhang, Ke, Bergin, Edwin, Ballering, Nick, Meyer, Michael R., Bruderer, Simon, collaboration, the JDISCS
Previous analyses of mid-infrared water spectra from young protoplanetary disks observed with the Spitzer-IRS found an anti-correlation between water luminosity and the millimeter dust disk radius observed with ALMA. This trend was suggested to be ev
Externí odkaz:
http://arxiv.org/abs/2307.03846
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:
Calahan, Jenny K., Bergin, Edwin A., Bosman, Arthur D., Rich, Evan, Andrews, Sean M., Bergner, Jennifer B., Cleeves, L. Ilsedore, Guzman, Viviana V., Huang, Jane, Ilee, John D., Law, Charles J., Gal, Romane Le, Oberg, Karin I., Teague, Richard, Walsh, Catherine, Wilner, David J., Zhang, Ke
The chemical reservoir within protoplanetary disks has a direct impact on planetary compositions and the potential for life. A long-lived carbon-and nitrogen-rich chemistry at cold temperatures (<=50K) is observed within cold and evolved planet-formi
Externí odkaz:
http://arxiv.org/abs/2212.05539
Autor:
Maksyutenko, Pavlo, Martin-Domenech, Rafael, Piacentino, Elettra, Oberg, Karin I., Rajappan, Mahesh
Benzonitrile (c-C6H5CN) has been recently detected in cold and dense regions of the interstellar medium (ISM), where it has been used as a signpost of a rich aromatic organic chemistry that might lead to the production of polycyclic aromatic hydrocar
Externí odkaz:
http://arxiv.org/abs/2210.03827
Autor:
Bae, Jaehan, Teague, Richard, Andrews, Sean M., Benisty, Myriam, Facchini, Stefano, Galloway-Sprietsma, Maria, Loomis, Ryan A., Aikawa, Yuri, Alarcon, Felipe, Bergin, Edwin, Bergner, Jennifer B., Booth, Alice S., Cataldi, Gianni, Cleeves, L. Ilsedore, Czekala, Ian, Guzman, Viviana V., Huang, Jane, Ilee, John D., Kurtovic, Nicolas T., Law, Charles J., Gal, Romane Le, Liu, Yao, Long, Feng, Menard, Francois, Oberg, Karin I., Perez, Laura M., Qi, Chunhua, Schwarz, Kamber R., Sierra, Anibal, Walsh, Catherine, Wilner, David J., Zhang, Ke
We report the discovery of a circumplanetary disk (CPD) candidate embedded in the circumstellar disk of the T Tauri star AS 209 at a radial distance of about 200 au (on-sky separation of 1."4 from the star at a position angle of $161^\circ$), isolate
Externí odkaz:
http://arxiv.org/abs/2207.05923
HCN is among the most commonly detected molecules in star- and planet-forming regions. It is of broad interest as a tracer of star-formation physics, a probe of nitrogen astrochemistry, and an ingredient in prebiotic chemical schemes. Despite this, o
Externí odkaz:
http://arxiv.org/abs/2206.04265