Zobrazeno 1 - 10
of 279
pro vyhledávání: '"Pontoppidan, Klaus"'
Autor:
Green, Joel D., Pontoppidan, Klaus M., Reiter, Megan, Watson, Dan M., Shenoy, Sachindev S., Manoj, P., Narang, Mayank
We present deep 1.4-4.8 um JWST-NIRCam imaging of the Serpens Main star-forming region and identify 20 candidate protostellar outflows, most with bipolar structure and identified driving sources. The outflow position angles (PAs) are strongly correla
Externí odkaz:
http://arxiv.org/abs/2406.13084
Autor:
Assani, Korash, Harsono, Daniel, Ramsey, Jon, Li, Zhi-Yun, Bjerkeli, Per, Pontoppidan, Klaus, Tychoniec, Łukasz, Calcutt, Hannah, Kristensen, Lars, Jorgensen, Jes, Plunkett, Adele, van Gelder, Martijn, Francis, Logan
(abridged) Protostellar outflows exhibit large variations in their structure depending on the observed gas emission. This study analyzes the atomic jet and molecular outflow in the Class I protostar, TMC1A to characterize morphology and identify prev
Externí odkaz:
http://arxiv.org/abs/2404.18334
Autor:
Habel, Nolan, Nally, Conor, Lenkic, Laura, Meixner, Margaret, De Marchi, Guido, Kavanagh, Patrick J., Fahrion, Katja, Nayak, Omnarayani, Hirschauer, Alec S., Jones, Olivia C., Biazzo, Katia, Brandl, Bernhard R., Jaspers, Jeroen, Pontoppidan, Klaus M., Robberto, Massimo, Rogers, Ciaran, Sabbi, Elena, Sargent, B. A., Soderblom, David R., Zeidler, Peter
We present a JWST imaging survey with NIRCam and MIRI of NGC 346, the brightest star-forming region in the Small Magellanic Cloud (SMC). By combining aperture and point spread function (PSF) photometry of eleven wavelength bands across these two inst
Externí odkaz:
http://arxiv.org/abs/2404.16242
Autor:
Cugno, Gabriele, Patapis, Polychronis, Banzatti, Andrea, Meyer, Michael, Dannert, Felix A., Stolker, Tomas, MacDonald, Ryan J., Pontoppidan, Klaus M.
GQ Lup B is a forming brown dwarf companion ($M\sim10-30~M_J$) showing evidence for an infrared excess associated with a disk surronding the companion itself. Here we present mid-infrared (MIR) observations of GQ Lup B with the Medium Resolution Spec
Externí odkaz:
http://arxiv.org/abs/2404.07086
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:
Muñoz-Romero, Carlos E., Öberg, Karin I., Banzatti, Andrea, Pontoppidan, Klaus M., Andrews, Sean M., Wilner, David J., Bergin, Edwin A., Czekala, Ian, Law, Charles J., Salyk, Colette, Teague, Richard, Qi, Chunhua, Bergner, Jennifer B., Huang, Jane, Walsh, Catherine, Guzmán, Viviana V., Cleeves, L. Ilsedore, Aikawa, Yuri, Bae, Jaehan, Booth, Alice S., Cataldi, Gianni, Ilee, John D., Gal, Romane Le, Long, Feng, Loomis, Ryan A., Menard, François, Liu, Yao
We present MIRI MRS 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 to 25.5 $\mu$m towards the inner $\sim1$ au in the disk, including the firs
Externí odkaz:
http://arxiv.org/abs/2402.00860
Autor:
Seo, Young Min, Willacy, Karen, Bryden, Geoffrey, Lis, Dariusz C., Goldsmith, Paul F., Pontoppidan, Klaus M., Thi, Wing-Fai
We discuss statistical relationships between the mass of protoplanetary disks and the hydrogen deuteride (HD) line emission and the dust spectral energy distribution (SED) determined using 3000 ProDiMo disk models. The models have 15 free parameters
Externí odkaz:
http://arxiv.org/abs/2310.16026
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:
Fischer, William J., Battersby, Cara, Johnstone, Doug, Lee, Rachel, Sewilo, Marta, Beuther, Henrik, Hasegawa, Yasuhiro, Ginsburg, Adam, Pontoppidan, Klaus
Evidence abounds that young stellar objects undergo luminous bursts of intense accretion that are short compared to the time it takes to form a star. It remains unclear how much these events contribute to the main-sequence masses of the stars. We dem
Externí odkaz:
http://arxiv.org/abs/2310.12867
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