Zobrazeno 1 - 10
of 307
pro vyhledávání: '"Ehrenfreund, Pascale"'
Autor:
Fan, Haoyu, Rocha, Carlos M. R., Cordiner, Martin, Linnartz, Harold, Cox, Nick L. J., Farhang, Amin, Smoker, Jonathan, Roueff, Evelyne, Ehrenfreund, Pascale, Salama, Farid, Foing, Bernard H., Lallement, Rosine, MacIsaac, Heather, Kulik, Klay, Sarre, Peter, van Loon, Jacco Th., Cami, Jan
Publikováno v:
A&A 681, A6 (2024)
We carried out a sensitive survey of C$_2$ and C$_3$ using the EDIBLES data set. We also expanded our searches to C$_4$, C$_5$, and $^{13}$C$^{12}$C isotopologue in the most molecule-rich sightlines. We fit synthetic spectra generated following a phy
Externí odkaz:
http://arxiv.org/abs/2310.03259
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:
Fan, Haoyu, Schwartz, Madison, Farhang, Amin, Cox, Nick L. J., Ehrenfreund, Pascale, Monreal-Ibero, Ana, Foing, Bernard H., Salama, Farid, Kulik, Klay, MacIsaac, Heather, van Loon, Jacco Th., Cami, Jan
More than 500 diffuse interstellar bands (DIBs) have been observed in astronomical spectra, and their signatures and correlations in different environments have been studied over the past decades to reveal clues about the nature of the carriers. We c
Externí odkaz:
http://arxiv.org/abs/2112.04541
Autor:
Cox, Nick, Cami, Jan, Farhang, Amin, Smoker, Jonathan, Monreal-Ibero, Ana, Lallement, Rosine, Sarre, Peter, Marshall, Charlotte, Smith, Keith, Evans, Christopher, Royer, Pierre, Linnartz, Harold, Cordiner, Martin, Joblin, Christine, van Loon, Jacco, Foing, Bernard, Bhatt, Neil, Bron, Emeric, Elyajouri, Meriem, de Koter, Alex, Ehrenfreund, Pascale, Javadi, Atefeh, Kaper, Lex, Khosroshadi, Habib, Laverick, Mike, Petit, Franck Le, Mulas, Giacomo, Roueff, Evelyne, Salama, Farid, Spaans, Marco
Publikováno v:
A&A 606, A76 (2017)
The carriers of the diffuse interstellar bands (DIBs) are largely unidentified molecules ubiquitously present in the interstellar medium (ISM). After decades of study, two strong and possibly three weak near-infrared DIBs have recently been attribute
Externí odkaz:
http://arxiv.org/abs/1708.01429
Autor:
Bentley, Mark S., Schmied, Roland, Mannel, Thurid, Torkar, Klaus, Jeszenszky, Harald, Romstedt, Jens, Levasseur-Regourd, Anny-Chantal, Weber, Iris, Jessberger, Elmar K., Ehrenfreund, Pascale, Koeberl, Christian, Havnes, Ove
Publikováno v:
Nature 537, 73-75 (2016)
Comets are thought to preserve almost pristine dust particles, thus providing a unique sample of the properties of the early solar nebula. The microscopic properties of this dust played a key part in particle aggregation during the formation of the S
Externí odkaz:
http://arxiv.org/abs/1704.00526
Autor:
Krüger, Harald, Goesmann, Fred, Giri, Chaitanya, Wright, Ian, Morse, Andrew, Bredehöft, Jan Hendrik, Ulamec, Stephan, Cozzoni, Barbara, Ehrenfreund, Pascale, Gautier, Thomas, McKenna-Lawlor, Susan, Raulin, Francois, Steininger, Harald, Szopa, Cyril
The Rosetta lander Philae successfully landed on the nucleus of comet 67P/Churyumov-Gerasimenko on 12 November 2014. Philae is equipped with two gas analyzers: The Cometary Sampling and Composition experiment (COSAC) and the gas chromatograph and mas
Externí odkaz:
http://arxiv.org/abs/1702.00192
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Akademický článek
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Autor:
Martins, Zita, Botta, Oliver, Fogel, Marilyn L., Sephton, Mark A., Glavin, Daniel P., Watson, Jonathan S., Dworkin, Jason P., Schwartz, Alan W., Ehrenfreund, Pascale
Publikováno v:
Earth and Planetary Science Letters 270, 130-136. 15 June 2008
Carbon-rich meteorites, carbonaceous chondrites, contain many biologically relevant organic molecules and delivered prebiotic material to the young Earth. We present compound-specific carbon isotope data indicating that measured purine and pyrimidine
Externí odkaz:
http://arxiv.org/abs/0806.2286