Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Keto E. R."'
Publikováno v:
Open Astronomy, Vol 20, Iss 4, Pp 558-565 (2011)
Although hydrogen cyanide has become quite a common molecular tracing species for a variety of astrophysical sources, it, however, exhibits dramatic non-LTE behaviour in its hyperfine line structure. Individual hyperfine components can be strongly bo
Externí odkaz:
https://doaj.org/article/4428f4a56d184ceaa1b8c0acf8b7200c
Autor:
Kruijssen, J. M. D., Dale, J. E., Longmore, S. N., Walker, D. L., Henshaw, J. D., Jeffreson, S. M. R., Petkova, M. A., Ginsburg, A., Barnes, A. T., Battersby, C. D., Immer, K., Jackson, J. M., Keto, E. R., Krieger, N., Mills, E. A. C., Sánchez-Monge, Á., Schmiedeke, A., Suri, S. T., Zhang, Q.
The evolution of molecular clouds in galactic centres is thought to differ from that in galactic discs due to a significant influence of the external gravitational potential. We present a set of numerical simulations of molecular clouds orbiting on t
Externí odkaz:
http://arxiv.org/abs/1902.01860
Autor:
Mullins, A. M., Loughnane, R. M., Redman, M. P., Wiles, B., Guegan, N., Barrett, J., Keto, E. R.
Molecules with hyperfine splitting of their rotational line spectra are useful probes of optical depth, via the relative line strengths of their hyperfine components.The hyperfine splitting is particularly advantageous in interpreting the physical co
Externí odkaz:
http://arxiv.org/abs/1604.03059
Autor:
De Pree, C. G., Peters, T., Mac Low, M. -M., Wilner, D. J., Goss, W. M., Galván-Madrid, R., Keto, E. R., Klessen, R. S., Monsrud, A.
We have recently published observations of significant flux density variations at 1.3 cm in HII regions in the star forming regions Sgr B2 Main and North (De Pree et al. 2014). To further study these variations, we have made new 7 mm continuum and re
Externí odkaz:
http://arxiv.org/abs/1511.05131
Autor:
De Pree, C. G., Peters, T., Mac Low, M. -M., Wilner, D. J., Goss, W. M., Galván-Madrid, R., Keto, E. R., Klessen, R. S., Monsrud, A.
Accretion flows onto massive stars must transfer mass so quickly that they are themselves gravitationally unstable, forming dense clumps and filaments. These density perturbations interact with young massive stars, emitting ionizing radiation, altern
Externí odkaz:
http://arxiv.org/abs/1312.7768
Autor:
Galván-Madrid, R., Liu, H. B., Zhang, Z. -Y., Pineda, J. E., Peng, T. -C., Zhang, Q., Keto, E. R., Ho, P. T. P., Rodríguez, L. F., Zapata, L., Peters, T., De Pree, C. G.
Publikováno v:
2013, ApJ, 779, 121
The Multi-Scale Continuum and Line Exploration of W49 (MUSCLE W49) is a comprehensive gas and dust survey of the giant molecular cloud (GMC) of W49A, the most luminous star-formation region in the Milky Way. It covers the entire GMC at different scal
Externí odkaz:
http://arxiv.org/abs/1309.4129
Context. To further understand the processes involved in the formation of massive stars, we have undertaken a study of the gas dynamics surrounding three massive star forming regions. By observing the large scale structures at high resolution, we are
Externí odkaz:
http://arxiv.org/abs/1103.5706
We present molecular line and 1.4 mm continuum observations towards five massive star forming regions at arcsecond resolution using the Submillimeter Array (SMA). We find that the warm molecular gas surrounding each HII region (as traced by SO_2 and
Externí odkaz:
http://arxiv.org/abs/0907.4377
Autor:
Kruijssen, J M D, Dale, J E, Longmore, S N, Walker, D L, Henshaw, J D, Jeffreson, S M R, Petkova, M A, Ginsburg, A, Barnes, A T, Battersby, C D, Immer, K, Jackson, J M, Keto, E R, Krieger, N, Mills, E A C, Sánchez-Monge, Á, Schmiedeke, A, Suri, S T, Zhang, Q
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Apr2019, Vol. 484 Issue 4, p5734-5754, 21p