Zobrazeno 1 - 10
of 131
pro vyhledávání: '"WILLIS, Eric"'
Autor:
Shope, Brielle M., El-Abd, Samer J., Brogan, Crystal L., Hunter, Todd R., Willis, Eric R., McGuire, Brett A., Garrod, Robin T.
Gas-phase abundance ratios between \ce{C2H4O2} isomers methyl formate (MF), glycolaldehyde (GA), and acetic acid (AA) are typically on the order of 100:10:1 in star-forming regions. However, an unexplained divergence from this neat relationship was r
Externí odkaz:
http://arxiv.org/abs/2409.13673
Publikováno v:
Icarus vol.416 (2024) pg.22
We present a chemical kinetics model of the solid-phase chemical evolution of a comet, beginning with a long period of cold-storage in the Oort Cloud, followed by five orbits that bring the comet close to the Sun. The chemical model is based on an ea
Externí odkaz:
http://arxiv.org/abs/2408.15509
A new, more comprehensive model of gas-grain chemistry in hot molecular cores is presented, in which nondiffusive reaction processes on dust-grain surfaces and in ice mantles are implemented alongside traditional diffusive surface/bulk-ice chemistry.
Externí odkaz:
http://arxiv.org/abs/2110.09743
Autor:
McGuire, Brett A., Loomis, Ryan A., Burkhardt, Andrew M., Lee, Kin Long Kelvin, Shingledecker, Christopher N., Charnely, Steven B., Cooke, Ilsa R., Cordiner, Martin A., Herbst, Eric, Kalenskii, Sergei, Siebert, Mark A., Willis, Eric R., Xue, Ci, Remijan, Anthony J., McCarthy, Michael C.
Publikováno v:
Science (2021) vol 371, pg 1265-1269
Ubiquitous unidentified infrared emission bands are seen in many astronomical sources. Although these bands are widely, if not unanimously, attributed to the collective emission from polycyclic aromatic hydrocarbons, no single species from this class
Externí odkaz:
http://arxiv.org/abs/2103.09984
Autor:
McCarthy, Michael C., Lee, Kin Long Kelvin, Loomis, Ryan A., Burkhardt, Andrew M., Shingledecker, Christopher N., Charnley, Steven B., Cordiner, Martin A., Herbst, Eric, Kalenskii, Sergei, Willis, Eric R., Xue, Ci, Remijan, Anthony J., McGuire, Brett A.
Much like six-membered rings, five-membered rings are ubiquitous in organic chemistry, frequently serving as the building blocks for larger molecules, including many of biochemical importance. From a combination of laboratory rotational spectroscopy
Externí odkaz:
http://arxiv.org/abs/2009.13546
An Investigation of Spectral Line Stacking Techniques and Application to the Detection of HC$_{11}$N
Autor:
Loomis, Ryan A., Burkhardt, Andrew M., Shingledecker, Christopher N., Charnley, Steven B., Cordiner, Martin A., Herbst, Eric, Kalenskii, Sergei, Lee, Kin Long Kelvin, Willis, Eric R., Xue, Ci, Remijan, Anthony J., McCarthy, Michael C., McGuire, Brett A.
As the inventory of interstellar molecules continues to grow, the gulf between small species, whose individual rotational lines can be observed with radio telescopes, and large ones, such as polycyclic aromatic hydrocarbons (PAHs) best studied in bul
Externí odkaz:
http://arxiv.org/abs/2009.11900
Autor:
McGuire, Brett A., Burkhardt, Andrew M., Loomis, Ryan A., Shingledecker, Christopher N., Lee, Kin Long Kelvin, Charnley, Steven B., Cordiner, Martin A., Herbst, Eric, Kalenskii, Sergei, Momjian, Emmanuel, Willis, Eric R., Xue, Ci, Remijan, Anthony J., McCarthy, Michael C.
We present an overview of the GOTHAM (GBT Observations of TMC-1: Hunting Aromatic Molecules) Large Program on the Green Bank Telescope. This and a related program were launched to explore the depth and breadth of aromatic chemistry in the interstella
Externí odkaz:
http://arxiv.org/abs/2008.12349
Autor:
Xue, Ci, Willis, Eric R., Loomis, Ryan A., Lee, Kin Long Kelvin, Burkhardt, Andrew M., Shingledecker, Christopher N., Charnley, Steven B., Cordiner, Martin A., Kalenskii, Sergei, McCarthy, Michael C., Herbst, Eric, Remijan, Anthony J., McGuire, Brett A.
We report an astronomical detection of HC$_4$NC for the first time in the interstellar medium with the Green Bank Telescope toward the TMC-1 molecular cloud with a minimum significance of $10.5 \sigma$. The total column density and excitation tempera
Externí odkaz:
http://arxiv.org/abs/2008.12345
Autor:
McGuire, Brett A., Shingledecker, Christopher N., Willis, Eric R., Lee, Kin Long Kelvin, Martin-Drumel, Marie-Aline, Blake, Geoffrey A., Brogan, Crystal L., Burkhardt, Andrew M., Caselli, Paola, Chuang, Ko-Ju, El-Abd, Samer, Hunter, Todd R., Ioppolo, Sergio, Linnartz, Harold, Remijan, Anthony J., Xue, Ci, McCarthy, Michael C.
A long standing problem in astrochemistry is the inability of many current models to account for missing sulfur content. Many relatively simple species that may be good candidates to sequester sulfur have not been measured experimentally at the high
Externí odkaz:
http://arxiv.org/abs/1908.04247
Autor:
El-Abd, Samer J., Brogan, Crystal L., Hunter, Todd R., Willis, Eric R., Garrod, Robin T., McGuire, Brett A.
The relative column densities of the structural isomers methyl formate, glycolaldehyde, and acetic acid are derived for a dozen positions towards the massive star-forming regions MM1 and MM2 in the NGC 6334I complex, which are separated by $\sim$4000
Externí odkaz:
http://arxiv.org/abs/1907.13551