Zobrazeno 1 - 10
of 588
pro vyhledávání: '"André Ph."'
Autor:
Mattern, M., André, Ph., Zavagno, A., Russeil, D., Roussel, H., Peretto, N., Schuller, F., Shimajiri, Y., Di Francesco, J., Arzoumanian, D., Revéret, V., De Breuck, C.
Publikováno v:
A&A 688, A163 (2024)
Despite recent progress, the question of what regulates the star formation efficiency in galaxies remains one of the most debated problems in astrophysics. According to the dominant picture, star formation (SF) is regulated by turbulence and feedback
Externí odkaz:
http://arxiv.org/abs/2405.15713
Publikováno v:
A&A 672, A133 (2023)
Recent Herschel observations of nearby clouds have shown that filamentary structures are ubiquitous and that most prestellar cores form in filaments. Probing the density ($n$) and velocity ($V$) structure of filaments is crucial for the understanding
Externí odkaz:
http://arxiv.org/abs/2301.10560
Publikováno v:
A&A 667, L1 (2022)
Herschel studies suggest that nearby (d < 500 pc) molecular filaments have a typical half-power width ~0.1pc, but this finding has been questioned on the ground that the measured widths tend to increase with distance. Here we revisit the dependence o
Externí odkaz:
http://arxiv.org/abs/2210.04736
Autor:
Schneider, N., Ossenkopf-Okada, V., Clarke, S., Klessen, R. S., Kabanovic, S., Veltchev, T., Bontemps, S., Dib, S., Csengeri, T., Federrath, C., Di Francesco, J., Motte, F., Andre, Ph., Arzoumanian, D., Beattie, J. R., Bonne, L., Didelon, P., Elia, D., Koenyves, V., Kritsuk, A., Ladjelate, B., Myers, Ph., Pezzuto, S., Robitaille, J. F., Roy, A., Seifried, D., Simon, R., Soler, J., Ward-Thompson, D.
Publikováno v:
A&A 666, A165 (2022)
We present N-PDFs of 29 Galactic regions obtained from Herschel imaging at high angular resolution, covering diffuse and quiescent clouds, and those showing low-, intermediate-, and high-mass star formation (SF), and characterize the cloud structure
Externí odkaz:
http://arxiv.org/abs/2207.14604
Autor:
Schuller, F., André, Ph., Shimajiri, Y., Zavagno, A., Peretto, N., Arzoumanian, D., Csengeri, T., Könyves, V., Palmeirim, P., Pezzuto, S., Rigby, A., Roussel, H., Ajeddig, H., Dumaye, L., Gallais, P., Pennec, J. Le, Martignac, J., Mattern, M., Revéret, V., Rodriguez, L., Talvard, M.
Publikováno v:
A&A 651, A36 (2021)
(abridged) Within the Orion A molecular cloud, the integral-shaped filament (ISF) is a prominent, degree-long structure of dense gas and dust, with clear signs of recent and on-going high-mass star formation. We used the ArTeMiS bolometer camera at A
Externí odkaz:
http://arxiv.org/abs/2104.03717
Autor:
Anderl, S., Maret, S., Cabrit, S., Maury, A. J., Belloche, A., André, Ph., Bacmann, A., Codella, C., Podio, L., Gueth, F.
Context. The process of mass accretion in the earliest phases of star formation is still not fully understood: Does the accretion rate smoothly decline with the age of the protostar or are there short, intermittent accretion bursts? Aims. We aim to e
Externí odkaz:
http://arxiv.org/abs/2011.05979
Autor:
Fiorellino, E., Elia, D., André, Ph., Men'shchikov, A., Pezzuto, S., Schisano, E., Könyves, V., Arzoumanian, D., Benedettini, M., Ward-Thompson, D., Bracco, A., Di Francesco, J., Bontemps, S., Kirk, J., Motte, F., Molinari, S.
The Herschel Gould Belt survey mapped the nearby (d < 500 pc) star-forming regions to understand better how the prestellar phase influences the star formation process. Here we report a complete census of dense cores in a 15 deg2 area of the Serpens s
Externí odkaz:
http://arxiv.org/abs/2010.15241
Autor:
Pezzuto, S., Benedettini, M., Di Francesco, J., Palmeirim, P., Sadavoy, S., Schisano, E., Causi, G. Li, André, Ph., Arzoumanian, D., Bernard, J. -Ph., Bontemps, S., Elia, D., Fiorellino, E., Kirk, J. M., Könyves, V., Ladjelate, B., Menshchikov, A., Motte, F., Piccotti, L., Schneider, N., Spinoglio, L., Ward-Thompson, D., Wilson, C. D.
Publikováno v:
A&A 645, A55 (2021)
(Abridged) In this paper, we present analyses of images taken with the Herschel ESA satellite from 70mu to 500mu. We first constructed column density and dust temperature maps. Next, we identified compact cores in the maps, and characterize the cores
Externí odkaz:
http://arxiv.org/abs/2010.00006
Autor:
Peretto, N., Rigby, A., André, Ph., Könyves, V., Fuller, G., Zavagno, A., Schuller, F., Arzoumanian, D., Bontemps, S., Csengeri, T., Didelon, P., Duarte-Cabral, A., Palmeirim, P., Pezzuto, S., Revéret, V., Roussel, H., Shimajiri, Y.
The mass growth of protostars is a central element to the determination of fundamental stellar population properties such as the initial mass function. Constraining the accretion history of individual protostars is therefore an important aspect of st
Externí odkaz:
http://arxiv.org/abs/2006.05155
Autor:
Zavagno, A., André, Ph., Schuller, F., Peretto, N., Shimajiri, Y., Arzoumanian, D., Csengeri, T., Figueira, M., Fuller, G. A., Könyves, V., Men'shchikov, A., Palmeirim, P., Roussel, H., Russeil, D., Schneider, N., Zhang, S.
Publikováno v:
A&A 638, A7 (2020)
Massive stars and their associated ionized (HII) regions could play a key role in the formation and evolution of filaments that host star formation. However, the properties of filaments that interact with H regions are still poorly known. To investig
Externí odkaz:
http://arxiv.org/abs/2004.05604