174 citations · 2.1k across the 31 of their papers we have counts for
28 papers · 1 filter
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…
Discovery of the cyclic C5H radical in TMC-1
Carlos Cabezas, Marcelino Agundez, Raul Fuentetaja +6
Cyclic C5H (c-C5H), the radical formed by substituting an ethynyl group CCH for the hydrogen atom in the c-C3H radical, has been detected for the first time in the space. The c-C5H…
Discovery of interstellar 3-cyano propargyl radical, CH2CCCN
Carlos Cabezas, Marcelino Agundez, Nuria Marcelino +4
We report the first detection in interstellar space of the 3-cyano propargyl radical (CH2C3N). This species was observed in the cold dark cloud TMC-1 using the Yebes 40m telescope.…
A study of C4H3N isomers in TMC-1: line by line detection of HCCCH2CN
N. Marcelino, B. Tercero, M. Agundez +1
We present Yebes 40m telescope observations of the three most stable C4H3N isomers towards the cyanopolyyne peak of TMC-1. We have detected 13 transitions from CH3C3N (A and E spec…
Tentative detection of HC5NH+ in TMC-1
N. Marcelino, M. Agundez, B. Tercero +5
Using the Yebes 40m radio telescope, we report the detection of a series of seven lines harmonically related with a rotational constant B0=1295.81581 +/- 0.00026 MHz and a distorti…
Discovery of HC3O+ in space: The chemistry of O-bearing species in TMC-1
J. Cernicharo, N. Marcelino, M. Agundez +5
Using the Yebes 40m and IRAM 30m radio telescopes, we detected a series of harmonically related lines with a rotational constant B0=4460.590 +/- 0.001 MHz and a distortion constant…
Discovery of HC4NC in TMC-1: A study of the isomers of HC3N, HC5N, and HC7N
J. Cernicharo, N. Marcelino, M. Agundez +4
We present a study of the isocyano isomers of the cyanopolyynes HC3N, HC5N, and HC7N in TMC-1 and IRC+10216 carried out with the Yebes 40m radio telescope. This study has enabled u…
Interstellar nitrile anions: Detection of C3N- and C5N- in TMC-1
J. Cernicharo, N. Marcelino, J. R. Pardo +5
We report on the first detection of C3N- and C5N- towards the cold dark core TMC-1 in the Taurus region, using the Yebes 40 m telescope. The observed C3N/C3N- and C5N/C5N- abundanc…
Chemical segregation of complex organic O-bearing species in Orion KL
Belén Tercero, Sara Cuadrado, Alicia López +3
We investigate the chemical segregation of complex O-bearing species (including the largest and most complex ones detected to date in space) towards Orion KL, the closest high-mass…
Discovery of the ubiquitous cation NS+ in space confirmed by laboratory spectroscopy
J. Cernicharo, B. Lefloch, M. Agundez +8
We report the detection in space of a new molecular species which has been characterized spectroscopically and fully identified from astrophysical data. The observations were carri…
Complex organic molecules in strongly UV-irradiated gas
S. Cuadrado, J. R. Goicoechea, J. Cernicharo +3
We investigate the presence of COMs in strongly UV-irradiated interstellar molecular gas. We have carried out a complete millimetre line survey using the IRAM30m telescope towards…
A spectroscopic survey of Orion KL between 41.5 and 50 GHz
J. R. Rizzo, B. Tercero, J. Cernicharo
Orion KL is one of the most frequently observed sources in the Galaxy, and the site where many molecular species have been discovered for the first time. With the availability of p…
Trans-cis molecular photoswitching in interstellar Space
S. Cuadrado, J. R. Goicoechea, O. Roncero +3
As many organic molecules, formic acid (HCOOH) has two conformers (trans and cis). The energy barrier to internal conversion from trans to cis is much higher than the thermal energ…
Searching for Trans Ethyl Methyl Ether in Orion KL
B. Tercero, J. Cernicharo, A. López +6
We report on the tentative detection of Ethyl Methyl Ether (tEME), , through the identification of a large number of rotational lines from each one of the…
Tentative Detection of the Nitrosylium Ion in Space
J. Cernicharo, S. Bailleux, E. Alekseev +8
We report the tentative detection in space of the nitrosylium ion, NO. The observations were performed towards the cold dense core Barnard 1-b. The identification of the NO…
Laboratory Characterization and Astrophysical Detection of Vibrationally Excited States of Vinyl Cyanide in Orion-KL
A. López, B. Tercero, Z. Kisiel +11
New laboratory data of CHCHCN (vinyl cyanide) in its ground and vibrationally excited states at the microwave to THz domain allow searching for these excited state transitions…
Herschel observations of EXtra-Ordinary Sources: Analysis of the HIFI 1.2 THz Wide Spectral Survey Toward Orion KL I. Methods
Nathan R. Crockett, Edwin A. Bergin, Justin L. Neill +19
We present a comprehensive analysis of a broad band spectral line survey of the Orion Kleinmann-Low nebula (Orion KL), one of the most chemically rich regions in the Galaxy, using…
Extended warm gas in Orion KL as probed by methyl cyanide
T. A. Bell, J. Cernicharo, S. Viti +4
In order to study the temperature distribution of the extended gas within the Orion Kleinmann-Low nebula, we have mapped the emission by methyl cyanide (CH3CN) in its J=6_K-5_K, J=…
Spectroscopic characterization and detection of Ethyl Mercaptan in Orion
L. Kolesniková, B. Tercero, J. Cernicharo +4
New laboratory data of ethyl mercaptan, CHCHSH, in the millimeter and submillimeter-wave domains (up to 880 GHz) provided very precise values of the spectroscopic const…
A combined IRAM and Herschel/HIFI study of cyano(di)acetylene in Orion KL: tentative detection of DC3N
G. B. Esplugues, J. Cernicharo, S. Viti +8
We present a study of cyanoacetylene (HC3N) and cyanodiacetylene (HC5N) in Orion KL, through observations from two line surveys performed with the IRAM 30m telescope and the HIFI i…
CH2D+, the Search for the Holy Grail
E. Roueff, M. Gerin, D. C. Lis +4
CH2D+, the singly deuterated counterpart of CH3+, offers an alternative way to mediate formation of deuterated species at temperatures of several tens of K, as compared to the rele…
A line confusion-limited millimeter survey of Orion KL. III. Sulfur oxide species
G. B. Esplugues, B. Tercero, J. Cernicharo +4
We present a study of the sulfur-bearing species detected in a line confusion-limited survey towards Orion KL performed with the IRAM 30m telescope in the range 80-281 GHz. The stu…
Improved determination of the 1(0)-0(0) rotational frequency of NH3D+ from the high resolution spectrum of the v4 infrared band
J. L. Doménech, M. Cueto, V. J. Herrero +4
The high resolution spectrum of the v4 band of NH3D+ has been measured by difference frequency IR laser spectroscopy in a multipass hollow cathode discharge cell. From the set of m…