Zobrazeno 1 - 10
of 7 448
pro vyhledávání: '"Black, J A"'
Autor:
Goicoechea, Javier R., Bourlot, J. Le, Black, J. H., Alarcón, F., Bergin, E. A., Berné, O., Bron, E., Canin, A., Chapillon, E., Chown, R., Dartois, E., Gerin, M., Habart, E., Haworth, T. J., Joblin, C., Kannavou, O., Petit, F. Le, Onaka, T., Peeters, E., Pety, J., Roueff, E., Sidhu, A., Schroetter, I., Tabone, B., Tielens, A. G. G. M., Trahin, B., Van De Putte, D., Vicente, S., Zannese, M.
Publikováno v:
A&A 689, L4 (2024)
The gas-phase abundance of carbon, x_C = C/H, and its depletion factors are essential parameters for understanding the gas and solid compositions that are ultimately incorporated into planets. The majority of protoplanetary disks are born in clusters
Externí odkaz:
http://arxiv.org/abs/2408.06279
Autor:
Muller, S., Marti-Vidal, I., Combes, F., Gerin, M., Beelen, A., Horellou, C., Guelin, M., Aalto, S., Black, J. H., van Kampen, E.
Publikováno v:
A&A 674, A101 (2023)
Time variability of astronomical sources provides crude information on their typical size and on the implied physical mechanisms. PKS1830-211 is a remarkable radio-bright lensed quasar with a foreground molecular absorber at z=0.89. Small-scale morph
Externí odkaz:
http://arxiv.org/abs/2304.09002
Autor:
Tabone, B., Bettoni, G., van Dishoeck, E. F., Arabhavi, A. M., Grant, S. L., Gasman, D., Henning, T., Kamp, I., Güdel, M., Lagage, P. -O., Ray, T. P., Vandenbussche, B., Abergel, A., Absil, O., Argyriou, I., Barrado, D., Boccaletti, A., Bouwman, J., Garatti, A. Caratti o, Geers, V., Glauser, A. M., Justannont, K., Lahuis, F., Mueller, M., Nehmé, C., Olofsson, G., Pantin, E., Scheithauer, S., Waelkens, C., Waters, L. B. F. M., Black, J. H., Christiaens, V., Guadarrama, R., Morales-Calderón, M., Jang, H., Kanwar, J., Pawellek, N., Perotti, G., Perrin, A., Rodgers-Lee, D., Samland, M., Schreiber, J., Schwarz, K. R., Colina, L., Östlin, G., Wright, G.
Carbon is an essential element for life but how much can be delivered to young planets is still an open question. The chemical characterization of planet-forming disks is a crucial step in our understanding of the diversity and habitability of exopla
Externí odkaz:
http://arxiv.org/abs/2304.05954
The Opaque Heart of the Galaxy IC 860: Analogous Protostellar, Kinematics, Morphology, and Chemistry
Autor:
Gorski, M. D., Aalto, S., König, S., Wethers, C., Yang, C., Muller, S., Viti, S., Black, J. H., Onishi, K., Sato, M.
Publikováno v:
A&A 670, A70 (2023)
Compact Obscured Nuclei (CONs) account for a significant fraction of the population of luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs). These galaxy nuclei are compact, with radii of 10-100~pc, with large optical depths at submm and f
Externí odkaz:
http://arxiv.org/abs/2210.04499
The fate of a massive star during the latest stages of its evolution is highly dependent on its mass-loss history and geometry, with the yellow hypergiants being key objects to study those phases of evolution. We present near-IR interferometric obser
Externí odkaz:
http://arxiv.org/abs/2207.05812
Autor:
Bergman, P., Lerner, M. S., Olofsson, A. O. H., Wirström, E., Black, J. H., Bjerkeli, P., Parra, R., Torstensson, K.
Publikováno v:
A&A 660, A118 (2022)
The aim of this work is to characterize HCN and CH$_3$OH emission from recent comets. We used the Onsala 20-m telescope to search for millimetre transitions of HCN towards a sample of 11 recent and mostly bright comets in the period December 2016 to
Externí odkaz:
http://arxiv.org/abs/2202.03396
Autor:
Olofsson, H., Black, J. H., Khouri, T., Vlemmings, W. H. T., Humphreys, E. M. L., Lindqvist, M., Maercker, M., Nyman, L., Ramstedt, S., Tafoya, D.
We report the detection of two lines at millimetre wavelengths towards the immediate surroundings of the post-giant and most likely post-common-envelope star HD101584 using high-angular-resolution ALMA observations. The circumstellar environment of t
Externí odkaz:
http://arxiv.org/abs/2105.00699
Autor:
Gull, T. R., Morris, P. W., Black, J. H., Nielsen, K. E., Barlow, M. J., Royer, P., Swinyard, B. M.
The evolved massive binary star Eta Carinae underwent eruptive mass loss events that formed the complex bi-polar Homunculus nebula harboring tens of solar masses of unusually nitrogen-rich gas and dust. Despite expectations for the presence of a sign
Externí odkaz:
http://arxiv.org/abs/2010.02351
Autor:
Leutenegger, M. A., Eckart, M. E., Moseley, S. J., Rohrbach, S. O., Black, J. K., Chiao, M. P., Kelley, R. L., Kilbourne, C. A., Porter, F. S.
X-ray calorimeters routinely achieve very high spectral resolution, typically a few eV full width at half maximum (FWHM). Measurements of calorimeter line shapes are usually dominated by the natural linewidth of most laboratory calibration sources. T
Externí odkaz:
http://arxiv.org/abs/2008.06161
Autor:
Muller, S., Roueff, E., Black, J. H., Gerin, M., Guelin, M., Menten, K. M., Henkel, C., Aalto, S., Combes, F., Martin, S., Marti-Vidal, I.
Publikováno v:
A&A 637, A7 (2020)
Deuterium and lithium are light elements of high cosmological and astrophysical importance. In this work we report the first detection of deuterated molecules and a search for lithium hydride, 7LiH, at redshift z=0.89 in the spiral galaxy interceptin
Externí odkaz:
http://arxiv.org/abs/2003.13436