Zobrazeno 1 - 10
of 387
pro vyhledávání: '"Mcguire, Brett A."'
Autor:
Alonso, Elena R., Insausti, Aran, Kolesniková, Lucie, León, Iker, McGuire, Brett A., Shingledecker, Christopher N., Agúndez, Marcelino, Cernicharo, José, Rivilla, Víctor M., Cabezas, Carlos
Publikováno v:
Elena R. Alonso et al 2024 ApJ 976 95
This work aims to spectroscopically characterize and provide for the first time direct experimental frequencies of the ground vibrational state and two excited states of the simplest alkynyl thiocyanate (HCCSCN) for astrophysical use. Both microwave
Externí odkaz:
http://arxiv.org/abs/2411.11802
The increasingly large number of complex organic molecules detected in the interstellar medium necessitates robust kinetic models that can be relied upon for investigating the involved chemical processes. Such models require rate constants for each o
Externí odkaz:
http://arxiv.org/abs/2410.09212
Autor:
Wenzel, Gabi, Speak, Thomas H., Changala, P. Bryan, Willis, Reace H. J., Burkhardt, Andrew M., Zhang, Shuo, Bergin, Edwin A., Byrne, Alex N., Charnley, Steven B., Fried, Zachary T. P., Gupta, Harshal, Herbst, Eric, Holdren, Martin S., Lipnicky, Andrew, Loomis, Ryan A., Shingledecker, Christopher N., Xue, Ci, Remijan, Anthony J., Wendlandt, Alison E., McCarthy, Michael C., Cooke, Ilsa R., McGuire, Brett A.
Polycyclic aromatic hydrocarbons (PAHs) are among the most ubiquitous compounds in the universe, accounting for up to ~25% of all interstellar carbon. Since most unsubstituted PAHs do not possess permanent dipole moments, they are invisible to radio
Externí odkaz:
http://arxiv.org/abs/2410.00670
Autor:
Wenzel, Gabi, Cooke, Ilsa R., Changala, P. Bryan, Bergin, Edwin A., Zhang, Shuo, Burkhardt, Andrew M., Byrne, Alex N., Charnley, Steven B., Cordiner, Martin A., Duffy, Miya, Fried, Zachary T. P., Gupta, Harshal, Holdren, Martin S., Lipnicky, Andrew, Loomis, Ryan A., Shay, Hannah Toru, Shingledecker, Christopher N., Siebert, Mark A., Stewart, D. Archie, Willis, Reace H. J., Xue, Ci, Remijan, Anthony J., Wendlandt, Alison E., McCarthy, Michael C., McGuire, Brett A.
Polycyclic aromatic hydrocarbons (PAHs) are expected to be the most abundant class of organic molecules in space. Their interstellar lifecycle is not well understood, and progress is hampered by difficulties detecting individual PAH molecules. Here,
Externí odkaz:
http://arxiv.org/abs/2410.00657
Autor:
Remijan, Anthony J., Fried, Zachary T. P., Cooke, Ilsa R., Wenzel, Gabi, Loomis, Ryan, Shingledecker, Christopher N., Lipnicky, Andrew, Xue, Ci, McCarthy, Michael C., McGuire, Brett A.
We used new high spectral resolution observations of propynal (HCCCHO) towards TMC-1 and in the laboratory to update the spectral line catalog available for transitions of HCCCHO - specifically at frequencies lower than 30 GHz which were previously d
Externí odkaz:
http://arxiv.org/abs/2409.16435
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
Autor:
Bergner, Jennifer B., Sturm, J. A., Piacentino, Elettra L., McClure, M. K., Oberg, Karin I., Boogert, A. C. A., Dartois, E., Drozdovskaya, M. N., Fraser, H. J., Harsono, Daniel, Ioppolo, Sergio, Law, Charles J., Lis, Dariusz C., McGuire, Brett A., Melnick, Gary J., Noble, Jennifer A., Palumbo, M. E., Pendleton, Yvonne J., Perotti, Giulia, Qasim, Danna, Rocha, W. R. M., van Dishoeck, E. F.
Planet formation is strongly influenced by the composition and distribution of volatiles within protoplanetary disks. With JWST, it is now possible to obtain direct observational constraints on disk ices, as recently demonstrated by the detection of
Externí odkaz:
http://arxiv.org/abs/2409.08117
The determination of chemical mixture components is vital to a multitude of scientific fields. Oftentimes spectroscopic methods are employed to decipher the composition of these mixtures. However, the sheer density of spectral features present in spe
Externí odkaz:
http://arxiv.org/abs/2408.15819
Autor:
Wilner, David J., Matthews, Brenda C., McGuire, Brett, Bergner, Jennifer, Walter, Fabian, Somerville, Rachel, DeCesar, Megan, van der Horst, Alexander, Osten, Rachel, Corsi, Alessandra, Baker, Andrew, Bergin, Edwin, Bolatto, Alberto, Blecha, Laura, Bower, Geoff, Burke-Spolaor, Sarah, Carrasco-Gonzalez, Carlos, de Keller, Katherine, de Pater, Imke, Dickinson, Mark, Drout, Maria, Hallinan, Gregg, Hatsukade, Bunyo, Isella, Andrea, Izumi, Takuma, Johnson, Megan, Lazio, Joseph, Leroy, Adam, Maccarone, Thomas, Mills, Betsy, Momose, Munetake, Ng, Cherry, Rosolowsky, Eric, Sakai, Nami, Zensus, Anton
In 2017, the next generation Very Large Array (ngVLA) Science Advisory Council, together with the international astronomy community, developed a set of five Key Science Goals (KSGs) to inform, prioritize and refine the technical capabilities of a fut
Externí odkaz:
http://arxiv.org/abs/2408.14497
Autor:
Wright, Melvyn, McGuire, Brett A., Ginsburg, Adam, Hirota, Tomoya, Bally, John, Hwangbo, Ryan, Bhadra, T. Dex, John, Chris, Dave, Rishabh
We present ALMA observations of SiO, SiS, H$_2$O , NaCl, and SO line emission at ~30 to 50 mas resolution. These images map the molecular outflow and disk of Orion Source I (SrcI) on ~12 to 20 AU scales. Our observations show that the flow of materia
Externí odkaz:
http://arxiv.org/abs/2408.05114