Comet composition provides critical information on the chemical and physical processes that took place during the formation of the Solar System. We report here on millimeter spectroscopic observations of the long-period bright comet C/2014 Q2 (Lovejoy) using the Atacama Pathfinder Experiment (APEX) band 1 receiver between UT 16.948 to 18.120 January 2015, when the comet was at heliocentric distance of 1.30 au and geocentric distance of 0.53 au. Bright comets allow for sensitive observations of gaseous volatiles that sublimate in their coma. These observations allowed us to detect HCN, CH3OH (multiple transitions), H2CO and CO, and to measure precise molecular production rates. Additionally, sensitive upper limits were derived on the complex...
Interstellar comet 2I/Borisov originated from the direction of Cassiopeia, and passed through the in...
Context. Submillimeter spectroscopic observations of comets provide an important tool for understand...
Observations of NH2, (OI) and molecular ion spectra in comets represent virtually all of the volatil...
We report production rates, rotational temperatures, and related parameters for gases in C/2013 R1 (...
We report production rates, rotational temperatures, and related parameters for gases in C/2013 R1 (...
Recently, there have been complimentary observations from multiple facilities to try to unravel the ...
High-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with NIRSPEC at the W. M. ...
A major observational challenge in cometary science is to quantify the extent to which chemical comp...
Gas-phase molecules in cometary atmospheres (comae) originate primarily from (1) outgassing by the n...
HCN J = 1-0 emission from the long-period comet C/2013 R1 (Lovejoy) was observed from the Onsala Spa...
International audienceHigh-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with...
Observations of NH2, OI, CH, CO(+), CO2(+), H2O(+), and N2(+) in optical spectra of comets represent...
International audienceHigh-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with...
Comets provide important clues to the physical and chemical processes that occurred during the forma...
International audienceHigh-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with...
Interstellar comet 2I/Borisov originated from the direction of Cassiopeia, and passed through the in...
Context. Submillimeter spectroscopic observations of comets provide an important tool for understand...
Observations of NH2, (OI) and molecular ion spectra in comets represent virtually all of the volatil...
We report production rates, rotational temperatures, and related parameters for gases in C/2013 R1 (...
We report production rates, rotational temperatures, and related parameters for gases in C/2013 R1 (...
Recently, there have been complimentary observations from multiple facilities to try to unravel the ...
High-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with NIRSPEC at the W. M. ...
A major observational challenge in cometary science is to quantify the extent to which chemical comp...
Gas-phase molecules in cometary atmospheres (comae) originate primarily from (1) outgassing by the n...
HCN J = 1-0 emission from the long-period comet C/2013 R1 (Lovejoy) was observed from the Onsala Spa...
International audienceHigh-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with...
Observations of NH2, OI, CH, CO(+), CO2(+), H2O(+), and N2(+) in optical spectra of comets represent...
International audienceHigh-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with...
Comets provide important clues to the physical and chemical processes that occurred during the forma...
International audienceHigh-resolution infrared spectra of comet C/2014 Q2 Lovejoy were acquired with...
Interstellar comet 2I/Borisov originated from the direction of Cassiopeia, and passed through the in...
Context. Submillimeter spectroscopic observations of comets provide an important tool for understand...
Observations of NH2, (OI) and molecular ion spectra in comets represent virtually all of the volatil...