163 citations · 805 across the 23 of their papers we have counts for
23 papers
The rich interstellar reservoir of dinitriles: Detection of malononitrile and maleonitrile in TMC-1
M. Agundez, C. Bermudez, C. Cabezas +7
While the nitrile group is by far the most prevalent one among interstellar molecules, the existence of interstellar dinitriles (molecules containing two -CN groups) has recently b…
More sulphur in TMC-1: Discovery of the NCS and HCS radicals with the QUIJOTE line survey
J. Cernicharo, C. Cabezas, M. Agúndez +4
We present the detection of the free radicals NCS and HCS towards TMC-1 with the QUIJOTE line survey. The derived column densities are (1.40.2)10 for NC…
Discovery of HCCCH2CCH in TMC-1 with the QUIJOTE line survey
R. Fuentetaja, M. Agúndez, C. Cabezas +5
We present the first detection in space of 1,4-pentadiyne. It has been found towards TMC-1 with the QUIJOTE line survey in the 31-50 GHz range. We observed a total of 17 transition…
Discovery of the interstellar cyanoacetylene radical cation HCN
C. Cabezas, M. Agúndez, Y. Endo +4
We report the first identification in space of HCN, the simplest member of the family of cyanopolyyne cations. Three rotational transitions with half-integer quantum number…
QUIJOTE discovery of the cation radicals HC5N+ and HC7N+
J. Cernicharo, C. Cabezas, M. Agúndez +4
We present the discovery with the QUIJOTE line survey of the cations HC5N+ and HC7N+ in the direction of TMC-1. Seven lines with half-integer quantum numbers from J=25/2-23/2 to 37…
CN and CCH derivatives of ethylene and ethane: Confirmation of the detection of CHCHCCH in TMC-1
J. Cernicharo, B. Tercero, M. Agúndez +4
We present a study of CHCHCCH, CHCHCN, CHCHCCH, and CHCHCN in TMC-1 using the QUIJOTE line survey. We confirm the presence of CHCHCCH in TMC-1,…
Doubly substituted isotopologues of HCCCN in TMC-1: Detection of D13CCCN, DC13CCN, DCC13CN, DCCC15N, H13C13CCN, H13CC13CN, HC13C13CN, HCC13C15N, and HC13CC15N
B. Tercero, N. Marcelino, E. Roueff +5
We report the first detection in space of a complete sample of nine doubly substituted isotopologues of HCCCN towards the cyanopolyyne peak of TMC-1 using observations of the QUIJO…
Study of the HCCNC and HNCCC isotopologs in TMC-1
José Cernicharo, Belén Tercero, Carlos Cabezas +5
We present the detection of the three 13C isotopologs of HCCNC and HNCCC toward TMC-1 using the QUIJOTE line survey. In addition, the D species has also been detected for these two…
Laboratory and astronomical discovery of the cyanovinyl radical H2CCCN
C. Cabezas, J. Tang, M. Agúndez +9
We report the first laboratory and interstellar detection of the alpha-cyano vinyl radical (H2CCCN). This species was produced in the laboratory by an electric discharge of a gas m…
Discovery of HCCCH in TMC-1
W. G. D. P. Silva, J. Cernicharo, S. Schlemmer +13
Based on a novel laboratory method, 14 mm-wave lines of the molecular ion HCCCH have been measured in high resolution, and the spectroscopic constants of this asymmetric ro…
Discovery of two metallic cyanoacetylides in IRC+10216: HMgCCCN and NaCCCN
C. Cabezas, J. R. Pardo, M. Agundez +6
We report on the detection of a series of six lines in the ultra-deep Q-band integration toward IRC+10216 carried out with the Yebes 40m telescope, which are in harmonic relation w…
Discovery of CH3CHCO in TMC-1 with the QUIJOTE line survey
R. Fuentetaja, C . Bermúdez, C. Cabezas +9
We report the detection of methyl ketene towards TMC-1 with the QUIJOTE line survey. Nineteen rotational transitions with rotational quantum numbers ranging from J = 3 up to J = 5…
Discovery of the C7N- anion in TMC-1 and IRC+10216
J. Cernicharo, J. R. Pardo, C. Cabezas +6
We report on the discovery of the C7N- anion towards the starless core TMC-1 and towards the carbon-rich evolved star IRC+10216. We used the data of the QUIJOTE line survey towards…
Precursors of fatty alcohols in the ISM: Discovery of n-propanol
Izaskun Jimenez-Serra, Lucas F. Rodriguez-Almeida, Jesus Martin-Pintado +12
Theories on the origins of life propose that early cell membranes were synthesized from amphiphilic molecules simpler than phospholipids such as fatty alcohols. The discovery in th…
Discovery of the elusive thioketenylium, HCCS+, in TMC-1
C. Cabezas, M. Agundez, N. Marcelino +6
We report the detection in TMC-1 of the cation HCCS+ (3Sigma-), which is the protonated form of the widespread radical CCS. This is the first time that a protonated radical has bee…
New deuterated species in TMC-1: Detection of CH2DC4H with the QUIJOTE line survey
C. Cabezas, R. Fuentetaja, E. Roueff +6
We report the first detection in space of the single deuterated isotopologue of methyldiacetylene, CH2DC4H. A total of 12 rotational transitions, with J = 8-12 and Ka = 0 and 1, we…
Probing non polar interstellar molecules through their protonated form: Detection of protonated cyanogen (NCCNH+)
M. Agundez, J. Cernicharo, P. de Vicente +19
Cyanogen (NCCN) is the simplest member of the series of dicyanopolyynes. It has been hypothesized that this family of molecules can be important constituents of interstellar and ci…
On the heating of source of the Orion KL hot core
P. de Vicente, J. Martin-Pintado, R. Neri +1
We present images of the J=10-9 rotational lines of HC3N in the vibrationally excited levels 1v7, 1v6 and 1v5 of the hot core (HC) in Orion KL. The images show that the spatial dis…
Warm molecular gas in the Galactic center region
N. J. Rodriguez-Fernandez, J. Martin-Pintado, P. de Vicente +1
We present some recent studies on the physical conditions and the chemistry of the interstellar medium (ISM) in the Galactic center region (GCR). Large scale shocks in the context…
Large scale grain mantle disruption in the Galactic Center
J. Martin-Pintado, J. R. Rizzo, P. de Vicente +2
We present observations of C2H5OH toward molecular clouds in Sgr A, Sgr B2 and associated with thermal and non-thermal features in the Galactic center. C2H5OH emission in Sgr A and…
Warm H2 in the Galactic center region
N. J. Rodriguez-Fernandez, J. Martin-Pintado, A. Fuente +3
We present ISO observations of several H2 pure-rotational lines (from S(0) to S(5)) towards a sample of 16 molecular clouds distributed along the central ~ 500 pc of the Galaxy. We…
ISO observations toward the reflection nebula NGC 7023: A nonequilibrium ortho- to para-H2 ratio
A. Fuente, J. Martin-Pintado, N. J. Rodrıguez-Fernández +3
We have observed the S(0), S(1), S(2), S(3), S(4) and S(5) rotational lines of molecular hydrogen (H2) towards the peak of the photodissociation region (PDR) associated with the re…
SiO emission from the Galactic Center Molecular Clouds
J. Martin-Pintado, P. de Vicente, A. Fuente +1
We have mapped the J=1-0 line of SiO in a 1 degree x 12 arcmin. (lxb) region around the Galactic center (GC) with an angular resolution of 2 arcmin. (approx. 4 pc). In contrast to…