Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Sarre, P. 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
The infrared view of dust and molecules around V4334 Sgr (Sakurai's Object): a 20-year retrospective
Autor:
Evans, A., Gehrz, R. D., Woodward, C. E., Banerjee, D. P. K., Geballe, T. R., Clayton, G. C., Sarre, P. J., Starrfield, S., Hinkle, K., Joyce, R. R., Lykou, Foteini, Helton, L. A., Eyres, S. P. S., Worters, H., Montiel, E. J., Liimets, T., Zijlstra, A., Richter, M., Krautter, J.
We present an analysis of the evolution of circumstellar dust and molecules in the environment of the very late thermal pulse object V4334 Sgr (Sakurai's Object) over a $\sim20$-year period, drawing on ground-, airborne- and space-based infrared phot
Externí odkaz:
http://arxiv.org/abs/2002.00907
Autor:
Sarre, P. J.
Dust particles play a major role in the formation, evolution and chemistry of interstellar clouds, stars and planetary systems. Commonly identified forms include amorphous and crystalline carbon-rich particles and silicates. Also present in many astr
Externí odkaz:
http://arxiv.org/abs/1908.07787
Autor:
Cordiner, M. A., Linnartz, H., Cox, N. L. J., Cami, J., Najarro, F., Proffitt, C. R., Lallement, R., Ehrenfreund, P., Foing, B. H., Gull, T. R., Sarre, P. J., Charnley, S. B.
Recent advances in laboratory spectroscopy lead to the claim of ionized Buckminsterfullerene (C60+) as the carrier of two diffuse interstellar bands (DIBs) in the near-infrared. However, irrefutable identification of interstellar C60+ requires a matc
Externí odkaz:
http://arxiv.org/abs/1904.08821
Discovered almost a century ago, the Diffuse Interstellar Bands (DIBs) still lack convincing and comprehensive identification. Hundreds of DIBs have now been observed in the near-ultraviolet (NUV), visible and near-infrared (NIR). They are widely hel
Externí odkaz:
http://arxiv.org/abs/1903.03532
Autor:
Elyajouri, M., Lallement, R., Cox, N. L. J., Cami, J., Cordiner, M. A., Smoker, J. V., Fahrang, A., Sarre, P. J., Linnartz, H.
Publikováno v:
A&A 616, A143 (2018)
The so-called C2-DIBs are a class of very weak bands that fall in the blue part of the optical spectrum and are associated with high column densities of the C2 molecule. DIB profile structures constrain potential molecular carriers, but their measure
Externí odkaz:
http://arxiv.org/abs/1805.11566
Autor:
Cordiner, M. A., Cox, N. L. J., Lallement, R., Najarro, F., Cami, J., Gull, T. R., Foing, B. H., Linnartz, H., Lindler, D. J., Proffitt, C. R., Sarre, P. J., Charnley, S. B.
Due to recent advances in laboratory spectroscopy, the first optical detection of a very large molecule has been claimed in the diffuse interstellar medium (ISM): C60+ (ionized Buckminsterfullerene). Confirming the presence of this molecule would hav
Externí odkaz:
http://arxiv.org/abs/1704.01501
Autor:
Evans, A., Gehrz, R. D., Woodward, C. E., Sarre, P. J., van Loon, J. Th., Helton, L. A., Starrfield, S., Eyres, S. P. S.
We present observations of CK Vul obtained with the Spitzer Space Telescope. The infrared spectrum reveals a warm dust continuum with nebular, molecular hydrogen and HCN lines superimposed, together with the "Unidentified Infrared" (UIR) features. Th
Externí odkaz:
http://arxiv.org/abs/1512.02146
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