Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Sarre, Peter J."'
Autor:
Farhang, Amin, Smoker, Jonathan, Cox, Nick L. J., Cami, Jan, Linnartz, Harold, van Loon, Jacco Th., Cordiner, Martin A., Sarre, Peter J., Khosroshahi, Habib G., Ehrenfreund, Pascale, Foing, Bernard H., Kaper, Lex, Laverick, Mike
Publikováno v:
A&A 678, A148 (2023)
Interstellar lines observed toward stellar targets change slowly over long timescales, mainly due to the proper motion of the background target relative to the intervening clouds. On longer timescales, the cloud's slowly changing physical and chemica
Externí odkaz:
http://arxiv.org/abs/2308.14027
Autor:
MacIsaac, Heather, Cami, Jan, Cox, Nick L. J., Farhang, Amin, Smoker, Jonathan, Elyajouri, Meriem, Lallement, Rosine, Sarre, Peter J., Cordiner, Martin A., Fan, Haoyu, Kulik, Klay, Linnartz, Harold, Foing, Bernard H., van Loon, Jacco Th., Mulas, Giacomo, Smith, Keith T.
Publikováno v:
A&A 662, A24 (2022)
Several diffuse interstellar bands (DIBs) have profiles with resolved sub-peaks that resemble rotational bands of large molecules. Analysis of these profiles can constrain the sizes and geometries of the DIB carriers, especially if the profiles exhib
Externí odkaz:
http://arxiv.org/abs/2203.01803
Autor:
Bailey, Mandy, van Loon, Jacco Th., Farhang, Amin, Javadi, Atefeh, Khosroshahi, Habib G., Sarre, Peter J., Smith, Keith T.
Publikováno v:
A&A 585, A12 (2016)
We have conducted a high signal-to-noise spectroscopic survey of 670 nearby early-type stars, to map Diffuse Interstellar Band (DIB) absorption in and around the Local Bubble. The project started with a Southern hemisphere survey conducted at the Eur
Externí odkaz:
http://arxiv.org/abs/1509.08025
Diffuse interstellar bands (DIBs) trace warm neutral and weakly-ionized diffuse interstellar medium (ISM). Here we present a dedicated, high signal-to-noise spectroscopic study of two of the strongest DIBs, at 5780 and 5797 \AA, in optical spectra of
Externí odkaz:
http://arxiv.org/abs/1509.05319
An analysis of absorption profiles of the $\lambda$6614 diffuse interstellar band recorded along the lines-of-sight towards HD 179406 (20 Aql) and HD 147889 is described. The difference in band shape is attributed to the degree of internal excitation
Externí odkaz:
http://arxiv.org/abs/1508.03308
Autor:
Smith, Keith T., Cordiner, Martin A., Evans, Christopher J., Cox, Nick L. J., Sarre, Peter J.
We present the first sample of diffuse interstellar bands (DIBs) in the nearby galaxy M33. Studying DIBs in other galaxies allows the behaviour of the carriers to be examined under interstellar conditions which can be quite different from those of th
Externí odkaz:
http://arxiv.org/abs/1307.4112
Publikováno v:
in The Diffuse Interstellar Bands, Proceedings of the International Astronomical Union, vol. 297, p. 141, 2014
We present observations which probe the small-scale structure of the interstellar medium using diffuse interstellar bands (DIBs). Towards HD 168075/6 in the Eagle Nebula, significant differences in DIB absorption are found between the two lines of si
Externí odkaz:
http://arxiv.org/abs/1307.3798
We present an investigation of small-scale-structure in the distribution of large molecules/dust in the interstellar medium through observations of diffuse interstellar bands (DIBs). High signal-to-noise optical spectra were recorded towards the star
Externí odkaz:
http://arxiv.org/abs/1301.6167
Autor:
Smith, Keith T., Fossey, Stephen J., Cordiner, Martin A., Sarre, Peter J., Smith, Arfon M., Bell, Tom A., Viti, Serena
Publikováno v:
MNRAS 429, p939-953, 2013
Ultra-high spectral resolution observations of time-varying interstellar absorption towards {\kappa} Vel are reported, using the Ultra-High Resolution Facility on the Anglo-Australian Telescope. Detections of interstellar Ca I, Ca II, K I, Na I and C
Externí odkaz:
http://arxiv.org/abs/1210.8136
Detection of C60 in embedded young stellar objects, a Herbig Ae/Be star and an unusual post-AGB star
Publikováno v:
MNRAS 421, p3277, 2012
The first detection of the C60 (Buckminsterfullerene) molecule in massive embedded young stellar objects (YSOs) is reported. Observations with Spitzer IRS reveal the presence of C60 in YSOs ISOGAL-P J174639.6-284126 and SSTGC 372630 in the Central Mo
Externí odkaz:
http://arxiv.org/abs/1201.3542