Zobrazeno 1 - 10
of 239
pro vyhledávání: '"P. Chapillon"'
Autor:
Nozari, Parisa, Sadavoy, Sarah, Chapillon, Edwige, Mason, Brian, Friesen, Rachel, Lowe, Ian, Stanke, Thomas, Di Francesco, James, Henning, Thomas, Zhang, Qizhou, Stutz, Amelia
It is widely assumed that dust opacities in molecular clouds follow a power-law profile with an index, $\beta$. Recent studies of the Orion Molecular Cloud (OMC) 2/3 complex, however, show a flattening in the spectral energy distribution (SED) at $ \
Externí odkaz:
http://arxiv.org/abs/2411.12693
Autor:
Dutrey, A., Chapillon, E., Guilloteau, S., Tang, Y. W., Boccaletti, A., Bouscasse, L., Collin-Dufresne, Th., Di Folco, E., Fuente, A., Piétu, V., Rivière-Marichalar, P., Semenov, D.
Publikováno v:
A&A 689, L7 (2024)
{Sulfur Monoxide is known to be a good shock tracer in molecular clouds and protostar environments, but its abundance is difficult to reproduce even using state-of-the-art astrochemical models. } {We investigate the properties of the observed SO emis
Externí odkaz:
http://arxiv.org/abs/2408.14276
Autor:
Goicoechea, Javier R., Bourlot, J. Le, Black, J. H., Alarcón, F., Bergin, E. A., Berné, O., Bron, E., Canin, A., Chapillon, E., Chown, R., Dartois, E., Gerin, M., Habart, E., Haworth, T. J., Joblin, C., Kannavou, O., Petit, F. Le, Onaka, T., Peeters, E., Pety, J., Roueff, E., Sidhu, A., Schroetter, I., Tabone, B., Tielens, A. G. G. M., Trahin, B., Van De Putte, D., Vicente, S., Zannese, M.
Publikováno v:
A&A 689, L4 (2024)
The gas-phase abundance of carbon, x_C = C/H, and its depletion factors are essential parameters for understanding the gas and solid compositions that are ultimately incorporated into planets. The majority of protoplanetary disks are born in clusters
Externí odkaz:
http://arxiv.org/abs/2408.06279
Autor:
Kashyap, Parashmoni, Majumdar, Liton, Dutrey, Anne, Guilloteau, Stéphane, Willacy, Karen, Chapillon, Edwige, Teague, Richard, Semenov, Dmitry, Henning, Thomas, Turner, Neal, Sahai, Raghvendra, Kóspál, Ágnes, Coutens, Audrey, Piétu, V., Gratier, Pierre, Ruaud, Maxime, Phuong, N. T., Di Folco, E., Lee, Chin-Fei, Tang, Y. -W.
Resolved molecular line observations are essential for gaining insight into the physical and chemical structure of protoplanetary disks, particularly in cold, dense regions where planets form and acquire their chemical compositions. However, tracing
Externí odkaz:
http://arxiv.org/abs/2407.07238
Autor:
Franceschi, R., Henning, Th., Smirnov-Pinchukov, G. V., Semenov, D. A., Schwarz, K., Dutrey, A., Chapillon, E., Gorti, U., Guilloteau, S., Piétu, V., van Terwisga, S., Bouscasse, L., Caselli, P., Gieser, G., Hsieh, T. -H., Lopez-Sepulcre, A., Segura-Cox, D. M., Pineda, J. E., Maureira, M. J., Valdivia-Mena, M. T.
We aim to constrain the gas density and temperature distributions as well as gas masses in several T Tauri protoplanetary disks located in Taurus. We use the 12CO, 13CO, and C18O (2-1) isotopologue emission observed at 0.9 with the IRAM NOrthern Exte
Externí odkaz:
http://arxiv.org/abs/2406.16498
Autor:
Hsieh, T. -H., Pineda, J. E., Segura-Cox, D. M., Caselli, P., Valdivia-Mena, M. T., Gieser, C., Maureira, M. J., Lopez-Sepulcre, A., Bouscasse, L., Neri, R., Möller, Th., Dutrey, A., Fuente, A., Semenov, D., Chapillon, E., Cunningham, N., Henning, Th., Pietu, V., Jimenez-Serra, I., Marino, S., Ceccarelli, C.
Publikováno v:
A&A 686, A289 (2024)
Complex Organic Molecules (COMs) have been found toward low-mass protostars but the origins of the COM emission are still unclear. It can be associated with, for example, hot corinos, outflows, and/or accretion shock/disk atmosphere. We have conducte
Externí odkaz:
http://arxiv.org/abs/2403.16892
Autor:
Semenov, D., Henning, Th., Guilloteau, S., Smirnov-Pinchukov, G., Dutrey, A., Chapillon, E., Pietu, V., Franceschi, R., Schwarz, K., van Terwisga, S., Bouscasse, L., Caselli, P., Ceccarelli, C., Cunningham, N., Fuente, A., Gieser, C., Hsieh, T. -H., Lopez-Sepulcre, A., Segura-Cox, D. M., Pineda, J. E., Maureira, M. J., Moeller, Th., Tafalla, M., Valdivia-Mena, M. T.
Publikováno v:
A&A 685, A126 (2024)
We are performing a line survey of 8 planet-forming Class II disks in Taurus with the IRAM NOrthern Extended Millimeter Array (NOEMA), as a part of the MPG-IRAM Observatory Program PRODIGE (PROtostars and DIsks: Global Evolution; PIs: P. Caselli and
Externí odkaz:
http://arxiv.org/abs/2402.14653
Autor:
Pascucci, Ilaria, Skinner, Bennett N., Deng, Dingshan, Ruaud, Maxime, Gorti, Uma, Schwarz, Kamber R., Chapillon, Edwige, Vioque, Miguel, Miley, James
We present an ACA search for [CI] emission at 492GHz toward large T Tauri disks (gas radii $\gtrsim 200$au) in the $\sim 1-3$Myr-old Lupus star-forming region. Combined with ALMA 12-m archival data for IM Lup, we report [CI] detections in 6 out of 10
Externí odkaz:
http://arxiv.org/abs/2307.02704
Autor:
Hsieh, T. -H., Segura-Cox, D. M., Pineda, J. E., Caselli, P., Bouscasse, L., Neri, R., Lopez-Sepulcre, A., Valdivia-Mena, M. T., Maureira, M. J., Henning, Th., Smirnov-Pinchukov, G. V., Semenov, D., Möller, Th., Cunningham, N., Fuente, A., Marino, S., Dutrey, A., Tafalla, M., Chapillon, E., Ceccarelli, C., Zhao, B.
Publikováno v:
A&A 669, A137 (2023)
Aims. We present high sensitivity and high-spectral resolution NOEMA observations of the Class 0/I binary system SVS13A, composed of the low-mass protostars VLA4A and VLA4B with a separation of ~90 au. VLA4A is undergoing an accretion burst that enri
Externí odkaz:
http://arxiv.org/abs/2211.05022
Autor:
Valdivia-Mena, M. T., Pineda, J. E., Segura-Cox, D. M., Caselli, P., Neri, R., López-Sepulcre, A., Cunningham, N., Bouscasse, L., Semenov, D., Henning, Th., Piétu, V., Chapillon, E., Dutrey, A., Fuente, A., Guilloteau, S., Hsieh, T. H., Jiménez-Serra, I., Marino, S., Maureira, M. J., Smirnov-Pinchukov, G. V., Tafalla, M., Zhao, B.
Publikováno v:
A&A 667, A12 (2022)
Context. In the past few years, there has been a rise in the detection of streamers, asymmetric flows of material directed toward the protostellar disk with material from outside the star's natal core. It is unclear how they affect the process of mas
Externí odkaz:
http://arxiv.org/abs/2208.01023