Zobrazeno 1 - 10
of 851
pro vyhledávání: '"Neufeld, D"'
Autor:
Obolentseva, M., Ivlev, A. V., Silsbee, K., Neufeld, D. A., Caselli, P., Edenhofer, G., Indriolo, N., Bisbas, T. G., Lomeli, D.
All current estimates of the cosmic-ray (CR) ionization rate rely on assessments of the gas density along the probed sight lines. Until now, these have been based on observations of different tracers, with C$_2$ being the most widely used in diffuse
Externí odkaz:
http://arxiv.org/abs/2408.11511
Autor:
Kim, W. -J., Schilke, P., Neufeld, D. A., Jacob, A. M., Sánchez-Monge, Á., Seifried, D., Godard, B., Menten, K. M., Walch, S., Falgarone, E., Veena, V. S., Bialy, S., Möller, T., Wyrowski, F.
Publikováno v:
A&A 670, A111 (2023)
As a complement to the HyGAL Stratospheric Observatory for Infrared Astronomy Legacy Program, we report the results of a ground-based absorption line survey of simple molecules in diffuse and translucent Galactic clouds. Using the Institut de Radioas
Externí odkaz:
http://arxiv.org/abs/2212.09334
Autor:
Jacob, A. M., Neufeld, D. A., Schilke, P., Wiesemeyer, H., Kim, W., Bialy, S., Busch, M., Elia, D., Falgarone, E., Gerin, M., Godard, B., Higgins, R., Hennebelle, P., Indriolo, N., Lis, D. C., Menten, K. M., Sanchez-Monge, A., Ossenkopf-Okada, V., Rugel, M. R., Seifried, D., Sonnentrucker, P., Walch, S., Wolfire, M., Wyrowski, F., Valdivia, V.
The HyGAL SOFIA legacy program surveys six hydride molecules -- ArH+, OH+, H2O+, SH, OH, and CH -- and two atomic constituents -- C+ and O -- within the diffuse interstellar medium (ISM) by means of absorption-line spectroscopy toward 25 bright Galac
Externí odkaz:
http://arxiv.org/abs/2202.05046
Autor:
Indriolo, Nick, Neufeld, D. A., Barr, A. G., Boogert, A. C. A., DeWitt, C. N., Karska, A., Montiel, E. J., Richter, M. J., Tielens, A. G. G. M.
Publikováno v:
ApJ 894 (2020) 107
We have observed the massive protostar AFGL 2136 IRS 1 in multiple wavelength windows in the near-to-mid-infrared at high ($\sim3$ km s$^{-1}$) spectral resolution using VLT+CRIRES, SOFIA+EXES, and Gemini North+TEXES. There is an abundance of H$_2$O
Externí odkaz:
http://arxiv.org/abs/2004.05818
Akademický článek
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Publikováno v:
A&A 622, A26 (2019)
The transition between atomic and molecular hydrogen is associated with important changes in the structure of interstellar clouds, and marks the beginning of interstellar chemistry. Because of the relatively simple networks controlling their abundanc
Externí odkaz:
http://arxiv.org/abs/1811.02679
Autor:
Indriolo, Nick, Tan, Jonathan C., Boogert, A. C. A., DeWitt, C. N., Montiel, E. J., Neufeld, D. A., Richter, M. J.
Publikováno v:
ApJL 865 (2018) L18
Orion BN has a large proper motion and radial velocity with respect to the gas and other stars in the region where it is presumed to have formed. Multiple dynamical interaction scenarios have been proposed to explain this motion. In one case BN is th
Externí odkaz:
http://arxiv.org/abs/1809.08155
Autor:
Indriolo, Nick, Bergin, E. A., Falgarone, E., Godard, B., Zwaan, M. A., Neufeld, D. A., Wolfire, M. G.
Publikováno v:
ApJ 865 (2018) 127
Cosmic rays are predominantly accelerated in shocks associated with star formation such as supernova remnants and stellar wind bubbles, so the cosmic-ray flux and thus cosmic-ray ionization rate, $\zeta_{\rm H}$, should correlate with the star-format
Externí odkaz:
http://arxiv.org/abs/1808.04852
Autor:
Winkel, B., Wiesemeyer, H., Menten, K. M., Sato, M., Brunthaler, A., Wyrowski, F., Neufeld, D., Gerin, M., Indriolo, N.
Recent submillimeter and far-infrared wavelength observations of absorption in the rotational ground-state lines of various simple molecules against distant Galactic continuum sources have opened the possibility of studying the chemistry of diffuse m
Externí odkaz:
http://arxiv.org/abs/1702.05956
Akademický článek
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