Results 21 to 30 of about 181,061 (267)

A study on missing lines in the synthetic solar spectrum near the Ca triplet [PDF]

, 2017
Synthetic stellar spectra are extensively used for many different applications in astronomy, from stellar studies (such as in the determination of atmospheric parameters of observed stellar spectra), to extragalactic studies (e.g.
Anstee, Asplund, Bacławski, Barklem, Barklem, Barklem, Barklem, Bell, Bertone, Bertone, Blackwell-Whitehead, Borrero, Civiš, Coelho, Czekala, de Boer, Den Hartog, Derouich, Dimitrijević, Doyle, Dravins, Duquette, Fuhr, Grevesse, Jessica R. Kitamura, Jorissen, Klose, Kroese, Kurucz, Kurucz, Kurucz, Lindegren, Lucimara P. Martins, Margolin, Martins, Martins, Mitchell, Munari, Nave, Paula Coelho, Paxton, Pickering, Raassen, Rubinstein, Rubinstein, Ruffoni, Safronova, Sbordone, Shchukina, Short, Smith, Stalin, Taklif, Wahlgren, Wallace, Ward, Wood   +56 more
core   +2 more sources

Infrared Spectra of Small Radicals for Exoplanetary Spectroscopy: OH, NH, CN and CH: The State of Current Knowledge

Molecules, 2023
In this study, we present a current state-of-the-art review of middle-to-near IR emission spectra of four simple astrophysically relevant molecular radicals—OH, NH, CN and CH.
Svatopluk Civiš, Adam Pastorek, Martin Ferus, Sergei N. Yurchenko, Noor-Ines Boudjema   +4 more
doaj   +1 more source

Molecular line shape parameters for exoplanetary atmospheric applications [PDF]

, 2017
We describe the recent updates to the ExoMol database regarding the molecular spectral line shapes. ExoMol provides comprehensive molecular line lists with a special emphasis on the applications involving characterization of hot atmospheres such as those
Barton, EJ, Tennyson, J, Yurchenko, SN
core   +2 more sources

A solar spectral line list between 10 and 200 A modified for application to high spectral resolution X-ray astronomy

The Astrophysical Journal Supplement Series, 1984
A spectral line list for the 10-200 A range is developed from existing solar spectra for application to high spectral resolution measurements of astrophysical plasmas. The solar spectral line lists are merged into a single comprehensive list. The effect of the solar emission measure distribution is removed from the line intensities, which results in a ...
G. A. Doschek, R. D. Cowan
openaire   +1 more source

Spectral line list of potential cosmochronological interest deduced from new calculations of radiative transition rates in singly ionized thorium (Th ii)

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACTIn this work, we report a list of 91 strong Th ii spectral lines in the visible wavelength region that could be used as cosmochronometers in future investigations to determine stellar ages from thorium radioactive decay. This list was established on the basis of a pseudo-relativistic Hartree–Fock model including core-polarization corrections ...
K Wang, P Quinet, P Palmeri, M R Godefroid, S Gamrath   +4 more
openaire   +2 more sources

Trident: a universal tool for generating synthetic absorption spectra from astrophysical simulations [PDF]

, 2017
Hydrodynamical simulations are increasingly able to accurately model physical systems on stellar, galactic, and cosmological scales, however, the utility of these simulations is often limited by our ability to directly compare them with the datasets ...
Hummels, Cameron, Silvia, Devin, Smith, Britton   +2 more
core   +3 more sources

Identification and mitigation of narrow spectral artifacts that degrade searches for persistent gravitational waves in the first two observing runs of Advanced LIGO [PDF]

, 2018
Searches are under way in Advanced LIGO and Virgo data for persistent gravitational waves from continuous sources, e.g. rapidly rotating galactic neutron stars, and stochastic sources, e.g.
Abbott, B. P., Abbott, R., Abbott, T. D., Adams, C., Adhikari, R. X., Adya, V. B., Ananyeva, A., Appert, S., Arai, K., Aston, S. M., Astone, P., Austin, C., Ballmer, S. W., Barker, D., Barr, B., Barsotti, Lisa, Bartlett, J., Bartos, I., Batch, J. C., Bejger, M., Bell, A. S., Betzwieser, J., Billingsley, G., Birch, J., Biscans, Sebastien, Biscoveanu, S., Biwer, C., Blair, C. D., Blair, R. M., Bork, R., Brooks, A. F., Callister, T. A., Cao, H., Christensen, N., Ciani, G., Clara, F., Clearwater, P., Colla, A., Cooper, S. J., Corban, P., Costa, C. F. Da Silva, Coughlin, E., Coughlin, M. W., Countryman, S. T., Covas, P. B., Cowart, M. J., Coyne, D. C., Crowder, S. G., Cumming, A., Cunningham, L., Danzmann, K., Daw, E. J., DeBra, D., DeRosa, R. T., DeSalvo, R., Dooley, K. L., Doravari, S., Driggers, J. C., Dwyer, S. E., Edo, T. B., Effler, A., Eggenstein, H.-B., Etzel, T., Evans, Matthew J, Factourovich, M., Fair, H., Fernandez Galiana, Alvaro-Miguel, Ferreira, E. C., Fisher, R. P., Fong, H., Frey, R., Fritschel, Peter K, Frolov, V. V., Fulda, P., Fyffe, M., Gateley, B., Giaime, J. A., Giardina, K. D., Goetz, E., Goetz, R., Goncharov, B., Gras, Slawomir, Gray, C., Grote, H., Gushwa, K. E., Gustafson, E. K., Gustafson, R., Hall, Evan D., Hammond, G., Hanks, J., Hanson, J., Hardwick, T., Harry, G. M., Heintze, M. C., Heptonstall, A. W., Hough, J., Hourihane, S., Inta, R., Izumi, K., Jones, R., Kandhasamy, S., Karki, S., Kasprzack, M., Kaufer, S., Kawabe, K., Kennedy, R., Kijbunchoo, N., Kim, W., King, E. J., King, P. J., Kissel, J. S., Korth, W. Z., Kuehn, G., Landry, M., Lantz, B., Laxen, M., Liu, J., Liu, W., Lockerbie, N. A., Lormand, M., Lundgren, A. P., MacInnis, Myron E, Macleod, D. M., Markosyan, A. S., Maros, E., Marsh, P., Martin, I. W., Martynov, Denis, Mason, Kenneth R, Massinger, T. J., Matas, A., Matichard, Fabrice, Mavalvala, Nergis, McCarthy, R., McClelland, D. E., McCormick, S., McCuller, Lee P, McIntyre, G., McIver, J., McRae, T., Mendell, G., Merilh, E. L., Meyers, P. M., Miller, John, Mittleman, Richard K, Mo, G., Mogushi, K., Moraru, D., Moreno, G., Mueller, G., Mukund, N., Mullavey, A., Munch, J., Márka, S., Márka, Z., Nelson, T. J. N., Neunzert, A., Nguyen, P., Nuttall, L. K., Oberling, J., Oktavia, O., Oliver, M., Oppermann, P., Oram, Richard J., Ormiston, R., Ottaway, D. J., Overmier, H., O’Reilly, B., Palamos, J. R., Palomba, C., Papa, M. A., Parker, W., Pearlstone, B. L., Pele, A., Penn, S., Perez, C. J., Phelps, M., Piccinni, O. J., Pierro, V., Pinto, I., Principe, M., Prokhorov, L. G., Puncken, O., Quetschke, V., Quintero, E. A., Radkins, H., Raffai, P., Ramirez, K. E., Rao, K., Reid, S., Reitze, D. H., Riles, K., Robertson, N. A., Rollins, J. G., Roma, V. J., Romel, C. L., Romie, J. H., Ross, M. P., Rowan, S., Ryan, K., Sadecki, T., Sammut, L., Sanchez, E. J., Sanchez, L. E., Sandberg, V., Savage, R. L., Schlassa, S., Schofield, R. M. S., Sellers, D., Shaddock, D. A., Shaffer, T. J., Shapiro, B., Shoemaker, David H, Sigg, D., Slagmolen, B. J. J., Smith, B., Smith, J. R., Sorazu, B., Spencer, A. P., Staley, A., Strain, K. A., Strauss, N., Sun, L., Tanner, D. B., Tao, D., Tasson, J. D., Taylor, R., Thomas, M., Thomas, P., Thorne, K. A., Thrane, E., Toland, K., Torrie, C. I., Traylor, G., Trembath-Reichert, S., Tse, Maggie, Tuyenbayev, D., Vajente, G., Valdes, G., van Veggel, A. A., Vecchio, A., Veitch, P. J., Venkateswara, K., Vo, T., Vorvick, C., Wade, M., Walker, M., Ward, R. L., Warner, J., Weaver, B., Weiss, Rainer, Weßels, P., Willke, B., Wipf, C. C., Wofford, J., Worden, J., Yamamoto, H., Yancey, C. C., Yu, Hang, Yu, Haocun, Zhang, L., Zhu, S., Zucker, Michael E, Zweizig, J.   +263 more
core   +1 more source

The missing conformer: A comprehensive rotational spectroscopy study and astronomical search of two conformers of methyl cyanoacetate

Frontiers in Astronomy and Space Sciences, 2022
We performed a comprehensive investigation of methyl cyanoacetate (MCA) using high-resolution Fourier transform rotational spectroscopy. Two low energy conformers of MCA were observed in the vibrational ground state, in selected frequency regions from 2 ...
Gayatri Batra, Gayatri Batra, Pablo Pinacho, Amanda L. Steber, Amanda L. Steber, Víctor M. Rivilla, Jesús Martín-Pintado, Izaskun Jiménez-Serra, Melanie Schnell, Melanie Schnell   +9 more
doaj   +1 more source

ON THE GF-VALUES FOR SOME DIATOMIC MOLECULAR SPECTRA

Odessa Astronomical Publications, 2017
In view of rich structure of the energy levels and the variety of transition types which are observable, molecules are the useful tool for investigation of physical parameters of stellar atmospheres, interstellar and circumstellar matter.
L. A. Kuznetsova, A. V. Shavrina
doaj   +1 more source

The bandmerged Planck Early Release Compact Source Catalogue: Probing sub-structure in the molecular gas at high Galactic latitude [PDF]

, 2016
The Planck Early Release Compact Source Catalogue (ERCSC) includes nine lists of highly reliable sources, individually extracted at each of the nine Planck frequency channels.
Chary, Ranga-Ram, Chen, Xi, Fowler, John W., Helou, George, McGehee, Peregrine, Pearson, Timothy J.   +5 more
core   +2 more sources