Zobrazeno 1 - 10
of 332
pro vyhledávání: '"PARKER, R J"'
Recent research provides compelling evidence that the decay of short-lived radioisotopes (SLRs), such as 26Al, provided the bulk of energy for heating and desiccation of volatile-rich planetesimals in the early Solar System. However, it remains uncle
Externí odkaz:
http://arxiv.org/abs/2410.17163
Autor:
Luhman, K. L., de Oliveira, C Alves, Baraffe, I., Chabrier, G., Manjavacas, E., Parker, R. J., Tremblin, P.
We have used the multiobject mode of the Near-Infrared Spectrograph (NIRSpec) on board the James Webb Space Telescope (JWST) to obtain low-resolution 1-5um spectra of 22 brown dwarf candidates in the Orion Nebula Cluster, which were selected with arc
Externí odkaz:
http://arxiv.org/abs/2410.10000
Autor:
Barnes, A. T., Liu, J., Zhang, Q., Tan, J. C., Bigiel, F., Caselli, P., Cosentino, G., Fontani, F., Henshaw, J. D., Jiménez-Serra, I., Kalb, D-S., Law, C. Y., Longmore, S. N., Parker, R. J., Pineda, J. E., Sánchez-Monge, A., Lim, W., Wang, K.
Context: Core accretion models of massive star formation require the existence of massive, starless cores within molecular clouds. Yet, only a small number of candidates for such truly massive, monolithic cores are currently known. Aims: Here we anal
Externí odkaz:
http://arxiv.org/abs/2303.15499
Autor:
Barnes, A. T., Henshaw, J. D., Fontani, F., Pineda, J. E., Cosentino, G., Tan, J. C., Caselli, P., Jiménez-Serra, I., Law, C. Y., Avison, A., Bigiel, F., Feng, S., Kong, S., Longmore, S. N., Moser, L., Parker, R. J., Sánchez-Monge, Á., Wang, K.
Infrared dark clouds (IRDCs) are potential hosts of the elusive early phases of high-mass star formation (HMSF). Here we conduct an in-depth analysis of the fragmentation properties of a sample of 10 IRDCs, which have been highlighted as some of the
Externí odkaz:
http://arxiv.org/abs/2103.09122
Autor:
Wright, Nicholas J., Jeffries, R. D., Jackson, R. J., Bayo, A., Bonito, R., Damiani, F., Kalari, V., Lanzafame, A. C., Pancino, E., Parker, R. J., Prisinzano, L., Randich, S., Vink, J. S., Alfaro, E. J., Bergemann, M., Franciosini, E., Gilmore, G., Gonneau, A., Hourihane, A., Jofré, P., Koposov, S. E., Lewis, J., Magrini, L., Micela, G., Morbidelli, L., Sacco, G. G., Worley, C. C., Zaggia, S.
The combination of precise radial velocities from multi-object spectroscopy and highly accurate proper motions from Gaia DR2 opens up the possibility for detailed 3D kinematic studies of young star forming regions and clusters. Here, we perform such
Externí odkaz:
http://arxiv.org/abs/1903.12176
Autor:
Sacco, G. G., Spina, L., Randich, S., Palla, F., Parker, R. J., Jeffries, R. D., Jackson, R., Meyer, M. R., Mapelli, M., Lanzafame, A. C., Bonito, R., Damiani, F., Franciosini, E., Frasca, A., Klutsch, A., Prisinzano, L., Tognelli, E., Degl'Innocenti, S., Moroni, P. G. Prada, Alfaro, E. J., Micela, G., Prusti, T., Barrado, D., Biazzo, K., Bouy, H., Bravi, L., Lopez-Santiago, J., Wright, N. J., Bayo, A., Gilmore, G., Bragaglia, A., Flaccomio, E., Koposov, S. E., Pancino, E., Casey, A. R., Costado, M. T., Donati, P., Hourihane, A., Jofre', P., Lardo, C., Lewis, J., Magrini, L., Monaco, L., Morbidelli, L., Sousa, S., Worley, C. C., Zaggia, S.
Publikováno v:
A&A 601, A97 (2017)
The young (~2 Myr) cluster Chamaeleon I is one of the closest laboratories to study the early stages of star cluster dynamics in a low-density environment. We studied its structural and kinematical properties combining parameters from the high-resolu
Externí odkaz:
http://arxiv.org/abs/1701.03741
Autor:
Henshaw, J. D., Caselli, P., Fontani, F., Jimenez-Serra, I., Tan, J. C., Longmore, S. N., Pineda, J. E., Parker, R. J., Barnes, A. T.
We present 3.7 arcsec (~0.05 pc) resolution 3.2 mm dust continuum observations from the IRAM PdBI, with the aim of studying the structure and fragmentation of the filamentary Infrared Dark Cloud G035.39-00.33. The continuum emission is segmented into
Externí odkaz:
http://arxiv.org/abs/1607.07452
Akademický článek
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Akademický článek
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Autor:
Bressert, E., Bastian, N., Evans, C. J., Sana, H., Hénault-Brunet, V., Goodwin, S. P., Parker, R. J., Gieles, M., Bestenlehner, J. M., Vink, J. S., Taylor, W. D., Crowther, P. A., Longmore, S. N., Gräfener, G., Apellániz, J. Maíz, de Koter, A., Cantiello, M., Kruijssen, J. M. D.
Whether massive stars can occasionally form in relative isolation or if they require a large cluster of lower-mass stars around them is a key test in the differentiation of star formation theories as well as how the initial mass function of stars is
Externí odkaz:
http://arxiv.org/abs/1204.3628