Zobrazeno 1 - 10
of 244
pro vyhledávání: '"Heitsch, F"'
The interstellar medium contains filamentary structure over a wide range of scales. Understanding the role of this structure, both as a conduit of gas across the scales and a diagnostic tool of local physics, is a major focus of star formation studie
Externí odkaz:
http://arxiv.org/abs/2203.09562
Autor:
Panopoulou, G. V., Clark, S. E., Hacar, A., Heitsch, F., Kainulainen, J., Ntormousi, E., Seifried, D., Smith, R. J.
Publikováno v:
A&A 657, L13 (2022)
Context: Filamentary structures in nearby molecular clouds have been found to exhibit a characteristic width of 0.1 pc, as observed in dust emission. Understanding the origin of this universal width has become a topic of central importance in the stu
Externí odkaz:
http://arxiv.org/abs/2111.08125
We revisit the reliability of metallicity estimates of high velocity clouds with the help of hydrodynamical simulations. We quantify the effect of accretion and viewing angle on metallicity estimates derived from absorption lines. Model parameters ar
Externí odkaz:
http://arxiv.org/abs/2111.00546
Autor:
Veilleux, S., Melendez, M., Stone, M., Cecil, G., Hodges-Kluck, E., Bland-Hawthorn, J., Bregman, J., Heitsch, F., Martin, C. L., Mueller, T., Rupke, D. S. N., Sturm, E., Tanner, R., Engelbracht, C.
We present the results from an analysis of deep Herschel far-infrared observations of the edge-on disk galaxy NGC 3079. The PSF-cleaned PACS images at 100 and 160 um display a 25 kpc x 25 kpc X-shape structure centered on the nucleus that is similar
Externí odkaz:
http://arxiv.org/abs/2110.01766
We present a proof-of-concept study of a method to estimate the inclination angle of compact high velocity clouds (CHVCs), i.e. the angle between a CHVC's trajectory and the line-of-sight. The inclination angle is derived from the CHVC's morphology a
Externí odkaz:
http://arxiv.org/abs/1606.06689
Autor:
Bihr, S., Beuther, H., Ott, J., Johnston, K. G., Brunthaler, A., Anderson, L. D., Bigiel, F., Carlhoff, P., Churchwell, E., Glover, S. C. O., Goldsmith, P. F., Heitsch, F., Henning, T., Heyer, M. H., Hill, T., Hughes, A., Klessen, R. S., Linz, H., Longmore, S. N., McClure-Griffiths, N. M., Menten, K. M., Motte, F., Nguyen-Lu'o'ng, Q., Plume, R., Ragan, S. E., Roy, N., Schilke, P., Schneider, N., Smith, R. J., Stil, J. M., Urquhart, J. S., Walsh, A. J., Walter, F.
Publikováno v:
2015, A&A, 580, A112
To study the atomic, molecular and ionized emission of Giant Molecular Clouds (GMCs), we have initiated a Large Program with the VLA: 'THOR - The HI, OH, Recombination Line survey of the Milky Way'. We map the 21cm HI line, 4 OH lines, 19 H_alpha rec
Externí odkaz:
http://arxiv.org/abs/1505.05176
Autor:
Meléndez, M., Veilleux, S., Martin, C., Engelbracht, C., Bland-Hawthorn, J., Cecil, G., Heitsch, F., McCormick, A., Müller, T., Rupke, D., Teng, S. H.
We present a detailed analysis of deep far-infrared observations of the nearby edge-on star-forming galaxy NGC 4631 obtained with the Herschel Space Observatory. Our PACS images at 70 and 160 um show a rich complex of filaments and chimney-like featu
Externí odkaz:
http://arxiv.org/abs/1502.07785
Autor:
Motte, F., Luong, Q. Nguyen, Schneider, N., Heitsch, F., Glover, S., Carlhoff, P., Hill, T., Bontemps, S., Schilke, P., Louvet, F., Hennemann, M., Didelon, P., Beuther, H.
Publikováno v:
A&A 571, A32 (2014)
Numerical simulations have explored the possibility to form molecular clouds through either a quasi-static, self-gravitating mechanism or the collision of gas streams or lower-density clouds. They also quantitatively predict the distribution of matte
Externí odkaz:
http://arxiv.org/abs/1404.4404
Autor:
Carlhoff, P., Luong, Q. Nguyen, Schilke, P., Motte, F., Schneider, N., Beuther, H., Bontemps, S., Heitsch, F., Hill, T., Kramer, C., Ossenkopf, V., Schuller, F., Simon, R., Wyrowski, F.
We aim to give a full description of the distribution and location of dense molecular clouds in the giant molecular cloud complex W43. It has previously been identified as one of the most massive star-forming regions in our Galaxy. To trace the moder
Externí odkaz:
http://arxiv.org/abs/1308.6112
Autor:
Luong, Q. Nguyen, Motte, F., Carlhoff, P., Louvet, F., Lesaffre, P., Schilke, P., Hill, T., Hennemann, M., Gusdorf, A., Schneider, N., Bontemps, S., Duarte-Cabral, A., Menten, K. M., Martin, P. G., Wyrowski, F., Bendo, G., Roussel, H., Bernard, J-P., Bronfman, L., Henning, T., Kramer, C., Heitsch, F.
The formation of high-mass stars is tightly linked to that of their parental clouds. We here focus on the high-density parts of W43, a molecular cloud undergoing an efficient event of formation. The cloud structure is studied with a column density im
Externí odkaz:
http://arxiv.org/abs/1306.0547