Sample records for ESTRELLAS DE CARBONO (carbon stars)
from WorldWideScience.org

Sample records 1 - 20 shown. Select sample records:



1

Warm water vapour in the sooty outflow from a luminous carbon star

Decin, L.; Agúndez, Marcelino; Barlow, Michael J.; Daniel, F.; Cernicharo, José; Lombaert, J. R.; Beck, E. de; Royer, P.; Vandenbussche, B.; Wesson, R.; Polehampton, E. T.; Blommaert, J. A. D. L.; Meester, W. de; Exter, K.; Feuchtgruber, H.; Gear, W. K.; Gomez, H. L.; Groenewegen, M. A. T.; Guélin, M.; Hargrave, P. C.; Huygen, R.; Imhof, P.; Ivison, R. J.; Jean, C.; Kahane, C.; Kerschbaum, F.; Leeks, S. J.; Lim, T.; Matsuura, M.; Olofsson, G.; Posch, T.; Regibo, S.; Savini, G.; Sibthorpe, B.; Swinyard, B. M.; Yates, J. A.; Waelkens, C.
2010-09-02

Digital.CSIC (Spain)

2

Understanding the Chemical Complexity in Circumstellar Envelopes of C-rich AGB Stars: the Case of IRC +10216

Agúndez, Marcelino ; Cernicharo, José ; Pardo Carrión, Juan Ramón ; Fonfría, José Pablo ; Guélin, Michel

To appear in Astrophysics and Space Science, special issue of "Science with ALMA: a new era for Astrophysics" conference, November, 13-17 2006, ed. R. Bachiller | The circumstellar envelopes of carbon-rich AGB stars show a chemical complexity that is exemplified by the prototypical object IRC +10216...

DRIVER (Spanish)

3

Understanding the Chemical Complexity in Circumstellar Envelopes of C-rich AGB Stars: the Case of IRC +10216

Agúndez, Marcelino; Cernicharo, José; Pardo Carrión, Juan Ramón; Fonfría, José Pablo; Guélin, Michel; Tenenbaum, E. D.; Ziurys, L. M.; Apponi, A. J.
2007-03-28

Digital.CSIC (Spain)

4

The slowly expanding envelope of CRL618 probed with HC3N rotational ladders

Pardo Carrión, Juan Ramón ; Cernicharo, José ; Goicoechea, Javier R. ; Phillips, Thomas G.

Lines from HC3N and isotopic substituted species in ground and vibrationally excited states produce crowded millimeter and submillimeter wave spectra in the C-rich protoplanetary nebula CRL618. The complete sequence of HC3N rotational lines from J=9-8 to J=30-29 has been observed with the IRAM 30m t...

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5

The slowly expanding envelope of CRL618 probed with HC3N rotational ladders

Pardo Carrión, Juan Ramón; Cernicharo, José; Goicoechea, Javier R.; Phillips, Thomas G.
2004-07-09

Digital.CSIC (Spain)

6

The abundances of polyacetylenes towards CRL618

Fonfría, José P.; Cernicharo, José; Richter, Matthew J.; Lacy, John H.
2010-12-02

Digital.CSIC (Spain)

7

The abundance of 36S in IRC+10216 and its production in the Galaxy

Gallino, R. ; Cernicharo, José ; Henkel, C. ; Ott, U. ; Mauersberger, R.

The J=2-1 and 3-2 rotational lines of the rare isotopomer C36S and the J=5-4 and 6-5 transitions of Si36S were detected in the carbon star IRC+10216 (CW Leo). These are the first detections of 36S bearing molecules in a star and the first spectroscopic detection of Si36S. From a comparison of 34S an...

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8

The abundance of 36S in IRC+10216 and its production in the Galaxy

Gallino, R.; Cernicharo, José; Henkel, C.; Ott, U.; Mauersberger, R.
2004-06-30

Digital.CSIC (Spain)

9

Revised rates for the stellar triple-alpha process from measurement of C-12 nuclear resonances

Fynbo, H. O. U.; Diget, C. Aa.; Bergmann, U. C.; García Borge, María José; Cederkäll, Joakim; Dendooven, Peter; Fraile, Luis M.; Franchoo, Serge; Fedosseev, Valentin N.; Fulton, Brian R.; Huang, Wenxue; Huikari, Jussi; Jeppesen, Henrik B.; Jokinen, Ari S.; Jones, Peter; Jonson, Björn; Köster, Ulli; Langanke, Karlheinz; Meister, Mikael; Nilsson, Thomas; Nyman, Göran; Prezado, Yolanda; Riisager, Karsten; Rinta-Antila, Sami; Tengblad, Olof; Turrión, Manuela; Wang, Youbao; Weissman, Leonid; Wilhelmsen, Katarina; Äystö, Juha
2005-01-13

Digital.CSIC (Spain)

10

Oxygen Chemistry in the Circumstellar Envelope of the Carbon-Rich Star IRC+10216

Agúndez, Marcelino ; Cernicharo, José

In this paper we study the oxygen chemistry in the C-rich circumstellar shells of IRC+10216. The recent discoveries of oxygen bearing species (water, hydroxyl radical and formaldehyde) toward this source challenge our current understanding of the chemistry in C-rich circumstellar envelopes. The pres...

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12

Observational evidence of the formation of cyanopolyynes in CRL618 through the polimerization of HCN

Pardo Carrión, Juan Ramón ; Cernicharo, José ; Goicoechea, Javier R.

The abundance ratio of consecutive members of the cyanopolyyne family has been explored in CRL 618 using data acquired in a complete line survey covering the frequency range 81–356 GHz. The Jup range explored for the different molecules is 1–4 for HCN and HNC, 9–39 for HC3N, 31–133 for HC5N, and 72–...

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13

Observational evidence of the formation of cyanopolyynes in CRL618 through the polimerization of HCN

Pardo Carrión, Juan Ramón; Cernicharo, José; Goicoechea, Javier R.
2005-07-01

Digital.CSIC (Spain)

15

Molecular survey of CRL618

Pardo Carrión, Juan Ramón ; Cernicharo, José ; Goicoechea, Javier R. ; Guélin, Michel ; Asensio Ramos, Andrés

Accepted for publication in The Astrophysical Journal (November 2006). | We present the complete data set, model and line identification of a survey of the emission from the C-rich protoplanetary nebula CRL 618 performed with the IRAM-30m telescope in the following frequency ranges: 80.25-115.75 GHz...

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16

Molecular survey of CRL618

Pardo Carrión, Juan Ramón; Cernicharo, José; Goicoechea, Javier R.; Guélin, Michel; Asensio Ramos, Andrés
2007-03-01

Digital.CSIC (Spain)

17

Molecular Line Survey of CRL 618 from 80 to 276 GHz and Complete Model

Pardo Carrión, Juan Ramón ; Cernicharo, José ; Goicoechea, Javier R. ; Guélin, Michel ; Asensio Ramos, Andrés

We present the complete data set, model, and line identification of a survey of the emission from the C-rich proto–planetary nebula CRL 618 performed with the IRAM 30 m telescope in the frequency ranges 80.25–115.75 GHz, 131.25–179.25 GHz, and 204.25–275.250 GHz. A selection of lines from different ...

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18

Molecular Line Survey of CRL 618 from 80 to 276 GHz and Complete Model

Pardo Carrión, Juan Ramón; Cernicharo, José; Goicoechea, Javier R.; Guélin, Michel; Asensio Ramos, Andrés
2007-05-20

Digital.CSIC (Spain)

19

Molecular Abundances in CRL 618

Pardo Carrión, Juan Ramón ; Cernicharo, José

In previous works we have modeled the different gas regions of the proto-planetary nebula CRL 618 by studyingthe large number of lines from the cyanopolyynes detected in a millimeter-wave line survey of this object. In thiswork we retrieve the rotational temperatures (Tr) and abundance ratios R wi...

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20

Molecular Abundances in CRL 618

Pardo Carrión, Juan Ramón; Cernicharo, José
2007-01-10

Digital.CSIC (Spain)

21

Langmuir monolayers of diacyl glycerol amino acid-based surfactants. Effect of the substitution pattern of the glycerol backbone

Albalat, Rosa; Claret, Josep; Ignés-Mullol, Jordi; Sagués, Francesc; Morán, María del Carmen; Pérez, Lourdes; Clapés Saborit, Pere; Pinazo Gassol, Aurora
2003-11-19

Digital.CSIC (Spain)

22

Influence of water filtration on the determination of a wide range of dissolved contaminants at parts-per-trillion levels

Gómez-Gutiérrez, Anna I.; Jover Comas, Eric; Bayona Termens, Josep María; Albaigés Riera, Joan
2007-01-30

Digital.CSIC (Spain)

24

High-J v=0 SiS Maser Emission in IRC+10216: A New Case of Infrared Overlaps

Fonfría, José Pablo ; Agúndez, Marcelino ; Tercero, Belén ; Pardo Carrión, Juan Ramón ; Cernicharo, José

We report on the first detection of maser emission in the J=11–10, J=14–13, and J=15–14 transitions of the v=0 vibrational state of SiS toward the carbon-rich star IRC +10216. These masers seem to be producedin the very inhomogeneous region between the star and the inner dust formation zone, locate...

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25

High-J v=0 SiS Maser Emission in IRC+10216: A New Case of Infrared Overlaps

Fonfría, José Pablo ; Agúndez, Marcelino ; Tercero, Belén ; Pardo Carrión, Juan Ramón ; Cernicharo, José

We report on the first detection of maser emission in the J=11-10, J=14-13 and J=15-14 transitions of the v=0 vibrational state of SiS toward the C-rich star IRC+10216. These masers seem to be produced in the very inhomogeneous region between the star and the inner dust formation zone, placed at 5-7...

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26

High-J v=0 SiS Maser Emission in IRC+10216: A New Case of Infrared Overlaps

Fonfría, José Pablo; Agúndez, Marcelino; Tercero, Belén; Pardo Carrión, Juan Ramón; Cernicharo, José
2006-08-01

Digital.CSIC (Spain)

27

High-J v=0 SiS Maser Emission in IRC+10216: A New Case of Infrared Overlaps

Fonfría, José Pablo; Agúndez, Marcelino; Tercero, Belén; Pardo Carrión, Juan Ramón; Cernicharo, José
2007-10-09

Digital.CSIC (Spain)

28

Detection of circumstellar CH2CHCN, CH2CN, CH3CCH and H2CS

Agúndez, Marcelino ; Fonfría, José Pablo ; Cernicharo, José ; Pardo Carrión, Juan Ramón ; Guélin, Michel

Based on observations carried out with the IRAM 30-meter telescope. IRAM is supported by INSU/CNRS (France), MPG (Germany)and IGN (Spain).-- Accepted for publication in Astronomy & Astrophysics. | We report on the detection of vinyl cyanide (CH2CHCN), cyanomethyl radical (CH2CN), methylacetylene (C...

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29

Detection of circumstellar CH2CHCN, CH2CN, CH3CCH and H2CS

Agúndez, Marcelino; Fonfría, José Pablo; Cernicharo, José; Pardo Carrión, Juan Ramón; Guélin, Michel
2007-12-06

Digital.CSIC (Spain)

30

Detection of C3O in IRC+10216: Oxygen-Carbon chain chemistry in the outer envelope

Tenenbaum, E. D. ; Apponi, A. J. ; Ziurys, L. M. ; Agúndez, Marcelino ; Cernicharo, José ; Pardo Carrión, Juan Ramón

The oxygen-bearing species C3O has been identified in the circumstellar envelope of the carbon star IRC +10216. The J = 8-->7, 9-->8, 10-->9, 14-->13, and 15-->14 transitions were detected at 2 and 3 mm using the Arizona Radio Observatory’s 12 m telescope. Measurements of the J = 9-->8, 10-->9, and ...

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31

Detection of C3O in IRC+10216: Oxygen-Carbon chain chemistry in the outer envelope

Tenenbaum, E. D.; Apponi, A. J.; Ziurys, L. M.; Agúndez, Marcelino; Cernicharo, José; Pardo Carrión, Juan Ramón; Guélin, Michel
2006-09-20

Digital.CSIC (Spain)

32

Chemical Evolution of the Circumstellar Envelopes of Carbon-rich Post-AGB objects

Herpin, F. ; Goicoechea, Javier R. ; Pardo Carrión, Juan Ramón ; Cernicharo, José

We have observed with the 30-m IRAM telescope, the CSO telescope and the ISOsatellite (Infrared Space Observatory) the rotational lines of CO at millimeter, submillimeter and far infrared wavelengths in the direction of C-rich stellar objects at different stages of evolution : CRL 2688 (a very young...

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33

Chemical Evolution of the Circumstellar Envelopes of Carbon-rich Post-AGB objects

Herpin, F.; Goicoechea, Javier R.; Pardo Carrión, Juan Ramón; Cernicharo, José
2002-06-11

Digital.CSIC (Spain)

34

A new infrared band in the Interstellar and Circumstellar Clouds: C_4 or C_4H?

Cernicharo, José ; Goicoechea, Javier R. ; Benilan, Y.

We report on the detection with the Infrared Space Observatory (ISO) of a molecular band at 57.5 microns (174 cm^{-1}) in carbon-rich evolved stars and in Sgr B2. Taking into account the chemistry of these objects the most likelihood carrier is a carbon chain. We tentatively assign the band to the n...

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35

A new infrared band in the Interstellar and Circumstellar Clouds: C_4 or C_4H?

Cernicharo, José; Goicoechea, Javier R.; Benilan, Y.
2002-10-17

Digital.CSIC (Spain)

36

A new Unidentified Far Infrared Band in NGC 7027

Senent Díez, María Luisa; Massó, Helena; Goicoechea, Javier R.; Cernicharo, José
2004-06-18

Digital.CSIC (Spain)

37

A Detailed Analysis of the Dust Formation Zone of IRC+10216 Derived from Mid-Infrared Bands of C2H2 and HCN

Fonfría, José Pablo ; Cernicharo, José ; Richter, Matthew J. ; Lacy, John H.

A spectral survey of IRC+10216 has been carried out in the range 11 to 14 um with a spectral resolution of about 4 km/s. We have identified a forest of lines in six bands ofC2H2 involving the vibrational statesfrom the ground to 3nu5 and in two bands of HCN, involving the vibrational states from ...

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38

A Detailed Analysis of the Dust Formation Zone of IRC+10216 Derived from Mid-Infrared Bands of C2H2 and HCN

Fonfría, José Pablo; Cernicharo, José; Richter, Matthew J.; Lacy, John H.
2008-01-20

Digital.CSIC (Spain)

39

A Detailed Analysis of the Dust Formation Zone of IRC+10216 Derived from Mid-IR Bands of C2H2 and HCN

Fonfría, José Pablo ; Cernicharo, José ; Richter, Matthew J. ; Lacy, John H.

Accepted for publication in the Astrophysical Journal. | A spectral survey of IRC+10216 has been carried out in the range 11 to 14 um with a spectral resolution of about 4 km s^-1. We have identified a forest of lines in six bands of C2H2 involving the vibrational states from the ground to 3ν5 and i...

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40

A Detailed Analysis of the Dust Formation Zone of IRC+10216 Derived from Mid-IR Bands of C2H2 and HCN

Fonfría, José Pablo; Cernicharo, José; Richter, Matthew J.; Lacy, John H.
2007-10-09

Digital.CSIC (Spain)