Zobrazeno 1 - 10
of 40
pro vyhledávání: '"D. T. Jaffe"'
Autor:
K. E. Brady, C. Sneden, C. A. Pilachowski, Melike Afşar, G. N. Mace, D. T. Jaffe, N. M. Gosnell, R. Seifert
Publikováno v:
The Astronomical Journal, Vol 166, Iss 4, p 154 (2023)
We report on the first detailed infrared chemical analysis of five binary members (S277, S997, S975, S1031, and S1195) in the open cluster M67 (NGC 2682). These stars are located outside (bluer and/or brighter than) the main-sequence turnoff region i
Externí odkaz:
https://doaj.org/article/f3255e8935cd4589adf604bcf4981ff2
Autor:
D. T. Jaffe, Nils Ryde, Graham M. Harper, Curtis DeWitt, William D. Vacca, Mark E. McKelvey, Matthew J. Richter, David A. Neufeld, Adwin Boogert, Nick Indriolo, Kristin Kulas
We present high spectral resolution (~3 km/s) observations of the nu_2 ro-vibrational band of H2O in the 6.086--6.135 micron range toward the massive protostar AFGL 2591 using the Echelon-Cross-Echelle Spectrograph (EXES) on the Stratospheric Observa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02f76bb8114f0e08392ac03119a59aa0
Autor:
D. T. Jaffe
Publikováno v:
Symposium - International Astronomical Union. 150:311-315
Warm molecular gas is important in a large range of astronomical contexts. We discuss here determinations of the temperature and mass of warm material in protostellar disks and cores, photon dominated regions, and molecular material shocked by protos
Autor:
Thomas K. Greathouse, Gregory J. Herczeg, D. T. Jaffe, Joan R. Najita, John H. Lacy, David Hollenbach, Thayne Currie, Martin A. Bitner, Geoffrey A. Blake, Colette Salyk, Matthew J. Richter, Greg W. Doppmann
We report the results of a search for pure rotational molecular hydrogen emission from the circumstellar environments of young stellar objects with disks using the Texas Echelon Cross Echelle Spectrograph (TEXES) on the NASA Infrared Telescope Facili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a26ac4c62a54b392084d5e69075a7a28
https://resolver.caltech.edu/CaltechAUTHORS:BITapj08
https://resolver.caltech.edu/CaltechAUTHORS:BITapj08
We present high spatial and spectral resolution observations of sixteen Galactic compact and ultracompact H II regions in the [Ne II] 12.8 microns fine structure line. The small thermal width of the neon line and the high dynamic range of the maps pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9a9ea390d262f6115cb56d76cf65a72
Autor:
K. L. Luhman, K. N. Allers, D. T. Jaffe, M. C. Cushing, K. A. Williams, C. L. Slesnick, W. D. Vacca
We present an analysis of the mass and age of the young low-mass binary Oph 1622 2405. Using resolved optical spectroscopy of the binary, we measure spectral types of M7.25±0.25 and M8.75±0.25 for the A and B components, respectively. We show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59acb36adf6a2995d971712e0e6b3570
https://resolver.caltech.edu/CaltechAUTHORS:20091112-142621603
https://resolver.caltech.edu/CaltechAUTHORS:20091112-142621603
Autor:
D. T. Jaffe, Geoffrey A. Blake, Thomas Greathouse, Matthew J. Richter, John H. Lacy, Martin A. Bitner
We present observations of pure rotational molecular hydrogen emission from the Herbig Ae star, AB Aurigae. Our observations were made using the Texas Echelon Cross Echelle Spectrograph (TEXES) at the NASA Infrared Telescope Facility and the Gemini N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::969b2a0a6a6fd4fbf73f72fdd65ad35f
http://arxiv.org/abs/0704.1481
http://arxiv.org/abs/0704.1481
Autor:
Matthew J. Richter, Qingfeng Zhu, D. T. Jaffe, David M. Mehringer, T. R. Geballe, Kevin Volk, Martin A. Bitner, John H. Lacy, Thomas K. Greathouse
We have mapped [Ne II] (12.8um) and [S IV] (10.5um) emission from W51 IRS 2 with TEXES on Gemini North, and we compare these data to VLA free-free observations and VLT near-infrared images. With 0.5" spatial and 4 km/s spectral resolution we are able
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ba0c147deccd70ac0cf7b69dc26f58b
Publikováno v:
High Resolution Infrared Spectroscopy in Astronomy ISBN: 3540252568
1 Department of Astronomy, University of Texas at Austin, Austin, TX 78712-0259 2 Department of Physics, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 3 Visiting Astronomer at the Infrared Telescope Facility, which is operated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::525e4745dcec5adcb1e1af8ca76c7f54
https://doi.org/10.1007/10995082_11
https://doi.org/10.1007/10995082_11
Publikováno v:
High Resolution Infrared Spectroscopy in Astronomy ISBN: 3540252568
We describe the TEXES survey for mid-IR H2 pure rotational emission from young stars and report early successes. H2 emission is a potential tracer of warm gas in circumstellar disks. Three pure rotational lines are available from the ground: the J=3=
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61d70ae1a9fb6d1696dbb8cb76aace73
https://doi.org/10.1007/10995082_30
https://doi.org/10.1007/10995082_30