88 citations · 808 across the 33 of their papers we have counts for
33 papers
Discovery of 1H-cyclopent[cd]indene (c-C11H8) in TMC-1 with the QUIJOTE line survey: A new three-ringed polycyclic aromatic hydrocarbon
R. Fuentetaja, C. Cabezas, M. Agúndez +4
We report the detection of the polycyclic aromatic hydrocarbon (PAH) 1H-cyclopent[cd]indene (c-C11H8) in TMC-1 with the QUI- JOTE line survey. We detected 22 independent lines corr…
Analysis of the isotopologues of CS, CCS, CCCS, HCS+, HCCS+, and H2CS in TMC-1 with the QUIJOTE line survey
R. Fuentetaja, C. Cabezas, Y. Endo +7
We performed a detailed analysis of the isotopologues with 13C, 34S, 33S, and 36S of the sulphur-bearing molecules CS, CCS, CCCS,HCS+, HCCS+, and H2CS towards TMC-1 using the QUIJO…
Discovery of interstellar phenalene (-CH): A new piece for the chemical puzzle of PAHs in space
Carlos Cabezas, Marcelino Agúndez, Cristóbal Pérez +10
We present the discovery of the unsubstituted polycyclic aromatic hydrocarbon (PAH) phenalene (-CH) in TMC-1 as part of the QUIJOTE line survey. In spite of the lo…
First detection of HS2 in a cold dark cloud
G. Esplugues, M. Agúndez, G. Molpeceres +5
We report the first detection of HS2 towards the cold dark cloud TMC-1. This is the first observation of a chemical species containing more than one sulphur atom in this type of so…
A search for the three isomers of cyano-1,3-butadiene in TMC-1: Implications for bottom-up routes involving 1,3-butadiene
M. Agundez, C. Cabezas, N. Marcelino +4
The molecule 1,3-butadiene (CH2CHCHCH2) could play a key role in the synthesis of the cyclic molecules cyclopentadiene and benzene in cold dense clouds. Since 1,3-butadiene is non-…
Detection of thioacetaldehyde (CH3CHS) in TMC-1: sulfur-oxygen differentiation along the hydrogenation sequence
M. Agundez, G. Molpeceres, C. Cabezas +5
In recent years the chemistry of sulfur in the interstellar medium has experienced a renewed interest due to the detection of a large variety of molecules containing sulfur. Here w…
Identification of the interstellar 1-cyano propargyl radical (HCCCHCN) in TMC-1
C. Cabezas, M. Agúndez, N. Marcelino +7
We report the first detection in interstellar medium of the 1-cyano propargyl radical, HCHCN. This species is an isomer of the 3-cyano propargyl radical (CHCN), which w…
Discovery of two cyano derivatives of acenaphthylene (CH) in TMC-1 with the QUIJOTE line survey
J. Cernicharo, C. Cabezas, R. Fuentetaja +12
We report the discovery in TMC-1 of two cyano derivatives of the PAH acenaphthylene (CH). We have found two series of lines with the QUIJOTE line survey that we assign t…
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…
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…
Discovery of thiofulminic acid with the QUIJOTE line survey: A study of the isomers of HNCS and HNCO in TMC-1
José Cernicharo, Marcelino Agúndez, Carlos Cabezas +4
We present the first detection of HCNS (thiofulminic acid) in space with the QUIJOTE line survey in the direction of TMC-1. We performed a complete study of the isomers of CHNS and…
Detection of vibrationally excited C6H in the cold prestellar core TMC-1 with the QUIJOTE line survey
J. Cernicharo, R. Fuentetaja, M. Agundez +4
In this work, we present the detection of twelve doublets with quantum numbers of N=12-11 to N=17-16 of the v11 vibrationally excited state of C6H towards TMC-1. This marks the fir…
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…
Detection of ethanol, acetone, and propanal in TMC-1: New O-bearing complex organics in cold sources
M. Agundez, J. C. Loison, K. M. Hickson +7
We present the detection of ethanol (C2H5OH), acetone (CH3COCH3), and propanal (C2H5CHO) toward the cyanopolyyne peak of TMC-1. These three O-bearing complex organic molecules are…
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…
Discovery of interstellar NC4NH+: dicyanopolyynes are indeed abundant in space
M. Agundez, C. Cabezas, N. Marcelino +4
The previous detection of two species related to the non polar molecule cyanogen (NCCN), its protonated form (NCCNH+) and one metastable isomer (CNCN), in cold dense clouds support…
Discovery of two new interstellar molecules with QUIJOTE: HCCCHCCC and HCCCCS
R. Fuentetaja, M. Agúndez, C. Cabezas +5
We report on the discovery of two new molecules, HCCCHCCC and HCCCCS, towards the starless core TMC-1 in the Taurus region from the QUIJOTE line survey in the 31.1-50.2 GHz frequen…
Discovery of fulvenallene in TMC-1 with the QUIJOTE line survey
José Cernicharo, Raúl Fuentetaja, Marcelino Agúndez +6
We report the detection of fulvenallene (-CHCCH) in the direction of TMC-1 with the QUIJOTE line survey. Thirty rotational transitions with =0,1,2,3 and =9-1…
Discovery of five cyano derivatives of propene with the QUIJOTE line survey
José Cernicharo, Raúl Fuentetaja, Carlos Cabezas +5
We report the discovery of five cyano derivatives of propene towards TMC-1 with the QUIJOTE line survey: and -crotononitrile (-CHCHCHCN, -CHCHCHCN), meth…