Zobrazeno 1 - 10 of 174 pro vyhledávání: '"Boogert, ACA"'
1
High-resolution 4.7 micron Keck/NIRSPEC spectra of protostars: II. Detection of the 13 CO isotope in icy grain mantles
Autor: Boogert, ACA, Blake, GA, Tielens, AGGM
Publikováno v: Astrophysical Journal, 577(1), 271-280. IOP PUBLISHING LTD
The high-resolution (R = 25,000) infrared M-band spectrum of the massive protostar NGC 7538 IRS 9 shows a narrow absorption feature at 4.779 mum (2092.3 cm(-1)) that we attribute to the vibrational stretching mode of the (CO)-C-13 isotope in pure CO
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::e8dd34b0db2058f5c30d1d2535c0f02e
https://research.rug.nl/en/publications/c527425d-2d19-49cf-9fa9-fbdbc1bfb08a
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2
ISO-SWS observations of interstellar solid (CO2)-C-13: heated ice and the Galactic C-12/C-13 abundance ratio
Autor: Boogert, ACA, Ehrenfreund, P, Gerakines, PA, Tielens, AGGM, Whittet, DCB, Schutte, WA, van Dishoeck, EF, de Graauw, T, Decin, L, Prusti, T
Publikováno v: Astronomy & astrophysics, 353(1), 349-362. EDP Sciences
We present observations of the stretching mode of (CO2)-C-13 ice along 13 lines of sight in the Galaxy, using the Short Wavelength Spectrometer on board of the Infrared Space Observatory (ISO-SWS). Remarkable variations are seen in the absorption ban
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::1d41801fc25284ef300e05f081ab08f3
https://research.rug.nl/en/publications/a86fecd1-df13-45cb-8c30-c68333d2c487
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3
Infrared Space Observatory with the observations of solid carbon dioxide in molecular clouds
Autor: Gerakines, PA, Whittet, DCB, Ehrenfreund, P, Boogert, ACA, Tielens, AGGM, Schutte, WA, Chiar, JE, van Dishoeck, EF, Prusti, T, Helmich, FP, de Graauw, T
Publikováno v: Astrophysical Journal, 522(1), 357-377. IOP PUBLISHING LTD
Spectra of interstellar CO2 ice absorption features at a resolving power of lambda/Delta lambda approximate to 1500-2000 are presented for 14 lines of sight. The observations were made with the Short-Wavelength Spectrometer (SWS) of the Infrared Spac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::aa505f44bc67495312bd25271106a7a5
https://research.rug.nl/en/publications/ba78d929-a623-49b6-9459-d4cb1cbff1f3
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4
Weak ice absorption features at 7.24 and 7.41 mu m in the spectrum of the obscured young stellar object W 33A
Autor: Schutte, WA, Boogert, ACA, Tielens, AGGM, Whittet, DCB, Gerakines, PA, Chiar, JE, Ehrenfreund, P, Greenberg, JM, van Dishoeck, EF, de Graauw, T
Publikováno v: Astronomy & astrophysics, 343(3), 966-976. EDP Sciences
ISO-SWS observations of the highly obscured young stellar object W 33A reveal two broad absorption features centered at 7.24 and 7.41 mu m. Comparison to interstellar ice analogs shows that the 7.24 mu m band can be well matched by the CH deformation
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::4e021eb3d94ff7a0ae77170bc11918c8
https://research.rug.nl/en/publications/ab34e193-2399-4a39-b565-12c85129fbc3
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5
Ice absorption features in the 5-8 mu m range
Autor: Keane, JV, Tielens, AGGM, Boogert, ACA, Whittet, DCB, Cox, P, Kessler, MF
Publikováno v: UNIVERSE AS SEEN BY ISO, VOLS I AND II, 683-685
STARTPAGE=683;ENDPAGE=685;TITLE=UNIVERSE AS SEEN BY ISO, VOLS I AND II
ISO-SWS spectra (2 - 45 mu m) have been obtained towards a large number of luminous young stellar objects. Here, we present a study of absorption features towards the two objects NGC: 7538:IRS9 and Mon R2:IRS3, for the spectral region 5 - 8 mu m. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::7757cfec93a9e76b43a2e3795d33d72a
https://research.rug.nl/en/publications/e2de8009-0134-44d6-abb3-56b6ad1c7035
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6
Laboratory studies of thermally processed H2O-CH3OH-CO2 ice mixtures and their astrophysical implications
Autor: Ehrenfreund, P, Kerkhof, O, Schutte, WA, Boogert, ACA, Gerakines, PA, Dartois, E, d'Hendecourt, L, Tielens, AGGM, van Dishoeck, EF, Whittet, DCB
Publikováno v: Astron. Ap., 350, 240-253
Astronomy & astrophysics, 350(1), 240-253. EDP Sciences
Data of the Infrared Space Observatory ISO have strongly influenced the current view of interstellar ice chemistry. ISO and ground-based results have confirmed that the most abundant ice species in warm regions close to massive protostars are H2O, CO
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c4737b8b521df6c8e7cba17893759540
http://hdl.handle.net/1887/2286
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7
The gas/solid methane abundance ratio toward deeply embedded protostars
Autor: Boogert, ACA, Helmich, EP, van Dishoeck, EF, Schutte, WA
Publikováno v: Astronomy & astrophysics, 336(1), 352-358. EDP Sciences
We present the detection of re-vibrational absorption lines of the deformation mode of gaseous CH4 toward the massive protostars W 33A, and NGC 7538 : IRS9, using the SWS spectrometer an board of the Infrared Space Observatory. The observed lines ind
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::2d831e96413935f593a52ed4caf51acb
https://research.rug.nl/en/publications/5ae32c55-25ae-4d46-a545-fcf90cf04694
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8
Processing of ICY mantles in protostellar envelopes
Autor: Chiar, JE, Gerakines, PA, Whittet, DCB, Pendleton, YJ, Tielens, AGGM, Adamson, AJ, Boogert, ACA
Publikováno v: Astrophysical Journal, 498(2), 716-727. IOP PUBLISHING LTD
We have obtained CO absorption profiles of several young stellar objects (YSOs), spanning a range of mass and luminosity, in order to investigate their ice mantle composition. We present the first detection of CO toward the class I YSO L1489 IRS in t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::83b4a672f5ade54aac211e054bff7e49
https://research.rug.nl/en/publications/c9fbcf18-9938-42cd-923a-983c910ab309
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10
ISO-SWS observations of weak bands of trace components of ices towards the young stellar object W 33A
Autor: Schutte, WA, Greenberg, JM, Van Dishoeck, EF, Tielens, AGGM, Boogert, ACA, Whittet, DCB
Publikováno v: Astrophysics and Space Science, 255(1-2), 61-66
ISO-SWS observations of the highly obscured young stellar object W 33A reveal two broad absorption features centered at 7.24 and 7.40 mu m The position and width of these features indicates that they are due to the XH bending mode (X= C, N, or O) of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::e7ab077f30a51ed8a964e05b0cb9c38f
https://research.rug.nl/en/publications/37652332-1bed-4f98-9f9f-63a55796d6e2
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