Zobrazeno 1 - 10
of 605
pro vyhledávání: '"Forbidden mechanism"'
Autor:
D. Ruschel-Dutra, Sebastián F. Sánchez, Margarida Carvalho, R. Cid Fernandes, A. L. de Amorim
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 502:1386-1400
MUSE-based emission-line maps of the spiral galaxy NGC 4030 reveal the existence of unresolved sources with forbidden line emission enhanced with respect to those seen in its own HII regions. This study reports our efforts to detect and isolate these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fbfc0011fe1dd84a2ddb354a52c8bdd
https://doi.org/10.1093/mnras/stab059
https://doi.org/10.1093/mnras/stab059
Autor:
I. Sakho
Publikováno v:
Journal of Modern Physics. 11:487-501
We report accurate wavelengths for the three most intense lines (resonance line: 1s2 1S0 - 1s2p 1P1, intercombination line: 1s2 1S0 - 1s2p 3P1 and forbidden line: 1s2 1S0 - 1s2s 3S1) along with wavelengths for the 1s2 1S0 - 1snp1P1 and 1S0 - 1snp3P2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a008225d128c8ce65a6d02cc2ae2aa1
https://doi.org/10.4236/jmp.2020.114031
https://doi.org/10.4236/jmp.2020.114031
Autor:
Yen Chen Chen
Traditional classification for subclass of the Seyfert galaxies is visual inspection or using a quantity defined as a flux ratio between the Balmer line and forbidden line. One algorithm of deep learning is Convolution Neural Network (CNN) and has sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca4a44877d9365a03baaf7d7f5f03aee
http://arxiv.org/abs/2107.06653
http://arxiv.org/abs/2107.06653
Autor:
M. Eracleous, Katie Auchettl, Lluís Galbany, Christopher S. Kochanek, C. Auge, Michael A. Tucker, J. T. Hinkle, J. P. Anderson, Thomas W.-S. Holoien, J. L. Prieto, A. V. Payne, J. M. M. Neustadt, Benjamin J. Shappee
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
We present Multi-Unit Spectroscopic Explorer (MUSE) integral-field spectroscopy of ESO 253-G003, which hosts a known active galactic nucleus (AGN) and the periodic nuclear transient ASASSN-14ko, observed as part of the All-weather MUse Supernova Inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2d4b69d0d6e2303bc52f1ef5770a199
http://hdl.handle.net/10261/254683
http://hdl.handle.net/10261/254683
Autor:
Michael Sterzik, C. Melo, Uma Gorti, Suzan Edwards, Richard Alexander, Ilaria Pascucci, Emma Whelan
Spectro-astrometry is used to investigate the low velocity component (LVC) of the optical forbidden emission from the T Tauri stars RU Lupi and AS 205 N. Both stars also have high velocity forbidden emission (HVC) which is tracing a jet. For AS 205 N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2e2dc48deda4bb865206c4992c5b706
Autor:
D. John Hillier, Luc Dessart
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 643, pp.L13. ⟨10.1051/0004-6361/202039287⟩
Astronomy and Astrophysics-A&A, 2020, 643, pp.L13. ⟨10.1051/0004-6361/202039287⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 643, pp.L13. ⟨10.1051/0004-6361/202039287⟩
Astronomy and Astrophysics-A&A, 2020, 643, pp.L13. ⟨10.1051/0004-6361/202039287⟩
Supernova (SN) explosions, through the metals they release, play a pivotal role in the chemical evolution of the Universe and the origin of life. Nebular phase spectroscopy constrains such metal yields, for example through forbidden line emission ass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43c97b76d27bbae66978d2828a55c4c4
https://hal.archives-ouvertes.fr/hal-02991806
https://hal.archives-ouvertes.fr/hal-02991806
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Photoevaporation driven by high energy radiation from the central star plays an important role in the evolution of protoplanetary discs. Photoevaporative winds have been unambiguously detected through blue-shifted emission lines, but their detailed p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5093715d13000c1a1e0c26257f8699e
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2020, 499 (4), pp.5230-5240. ⟨10.1093/mnras/staa2971⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 499 (4), pp.5230-5240. ⟨10.1093/mnras/staa2971⟩
Monthly Notices of the Royal Astronomical Society, 2020, 499 (4), pp.5230-5240. ⟨10.1093/mnras/staa2971⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 499 (4), pp.5230-5240. ⟨10.1093/mnras/staa2971⟩
Today, the majority of the cosmic baryons in the Universe are not observed directly, leading to an issue of "missing baryons" at low redshift. Cosmological hydrodynamical simulations have indicated that a significant portion of them will be converted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db31634dd93ad9ca77cc9cc96c1a8fd5
https://hal.science/hal-02966414
https://hal.science/hal-02966414
Publikováno v:
The Astrophysical Journal. 921:181
We present an analysis of wind absorption in the C II ${\lambda}1335$ doublet towards 40 classical T Tauri stars with archival far-ultraviolet (FUV) spectra obtained by the Hubble Space Telescope. Absorption features produced by fast or slow winds ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34cbd4d60ce6b9c8ea53b9eec6c66ad4
https://doi.org/10.3847/1538-4357/ac1739
https://doi.org/10.3847/1538-4357/ac1739
Autor:
Hajime Tanuma, Takuya Ishida, Naoki Numadate, Kunihiro Okada, Hirofumi Shimaya, Nobuyuki Nakamura
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 408:114-117
We have reproduced solar wind charge exchange collisions of hydrogen-like O7+ ions with He gas at collision energies of 42 keV in the laboratory and observed the forbidden transition of 1s2 1 S 0 –1s2s 3 S 1 in helium-like O 6 + ions produced by si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21a352acb0bdd0ae15ca956bdd034d02
https://doi.org/10.1016/j.nimb.2017.04.083
https://doi.org/10.1016/j.nimb.2017.04.083