Polarization in broad emission lines of active galactic nuclei
Sign Up to like & getrecommendations! Published in 2021 at "Astronomische Nachrichten"
DOI: 10.1002/asna.20210089
Abstract: Funding Information Ministry of Education, Science and Technological Development of R. Serbia, 451-03-68/202014/200002. 451-039/2021-14/200104. Ministry of Science and Higher Education of the Russian Federation, We discuss the polarization of broad emission lines in the type… read more here.
Keywords: polarization broad; geometry; polarization; broad emission ... See more keywords
An atlas of star-forming galaxy equivalent widths
Sign Up to like & getrecommendations! Published in 2017 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-017-3178-9
Abstract: We present an atlas of starburst galaxy emission lines spanning 10 orders of magnitude in ionizing flux and 7 orders of magnitude in hydrogen number density. Coupling SEDs from Starburst99 with photoionization calculations from Cloudy,… read more here.
Keywords: emission lines; star forming; atlas star; equivalent widths ... See more keywords
Intriguing X-ray and optical variations of the γ Cassiopeiae analog HD 45314
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201731782
Abstract: A growing number of Be and Oe stars, named the gamma Cas stars, are known for their unusually hard and intense X-ray emission. This emission could either trace accretion by a compact companion or magnetic… read more here.
Keywords: disk; emission lines; ray emission; ray ... See more keywords
Forbidden line diagnostics of photoevaporative disc winds
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1767
Abstract: 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 properties remain… read more here.
Keywords: disc winds; disc; emission lines; line ... See more keywords
Carbon monoxide emission lines reveal an inverted atmosphere in the ultra hot Jupiter WASP-33 b consistent with an eastward hot spot
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1103
Abstract: We report the first detection of CO emission at high spectral resolution in the day-side infrared thermal spectrum of an exoplanet. These emission lines, found in the atmosphere of the transiting ultra hot Jupiter (UHJ)… read more here.
Keywords: hot jupiter; emission lines; emission; hot spot ... See more keywords
QSFit: automatic analysis of optical AGN spectra
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx2239
Abstract: We present QSFit (Quasar Spectral Fitting package), a new software package to automatically perform the analysis of active galactic nuclei (AGNs) optical spectra. The software provides luminosity estimates for the AGN continuum, the Balmer continuum,… read more here.
Keywords: agn continuum; analysis; qsfit; emission lines ... See more keywords
Probing cosmic dawn with emission lines: predicting infrared and nebular line emission for ALMA and JWST
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1672
Abstract: Infrared and nebular lines provide some of our best probes of the physics regulating the properties of the interstellar medium (ISM) at high redshift. However, interpreting the physical conditions of high-redshift galaxies directly from emission… read more here.
Keywords: line; emission lines; nebular line; line emission ... See more keywords
A magnified compact galaxy at redshift 9.51 with strong nebular emission lines
Sign Up to like & getrecommendations! Published in 2022 at "Science"
DOI: 10.1126/science.adf5307
Abstract: Ultraviolet light from early galaxies is thought to have ionized gas in the intergalactic medium. However, there are few observational constraints on this epoch because of the faintness of those galaxies and the redshift of… read more here.
Keywords: spectroscopy; galaxy redshift; emission lines; redshift ... See more keywords
Abundances from emission lines in ionized nebulae
Sign Up to like & getrecommendations! Published in 2017 at "Canadian Journal of Physics"
DOI: 10.1139/cjp-2017-0127
Abstract: This contribution, presented at the 2016 conference on Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas (ASOS12), shows how atomic physics contributes to the interpretation of emission-line spectra observed in astronomical nebulae, and… read more here.
Keywords: lines ionized; emission lines; physics; abundances emission ... See more keywords
Time-Dependent Intensity Ratio-Based Approach for Estimating the Temperature of Laser Produced Plasma
Sign Up to like & getrecommendations! Published in 2022 at "Applied Spectroscopy"
DOI: 10.1177/00037028221117534
Abstract: Reported here is a rapid and simplified approach for modeling the temporal evolution of the plasma temperature. The use of only two emission lines makes this technique simple, accurate, and fast. Usually, multiple emission lines… read more here.
Keywords: emission lines; intensity ratio; temperature; plasma ... See more keywords
Quantitative estimation of elemental composition employing a synthetic generated spectrum.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.005443
Abstract: Composition of multielement samples is estimated by using a synthetic generated spectrum utilizing a nonlinear fitting routine. By fitting simultaneously a large number of emission lines, the error in the estimation is minimized. The procedure… read more here.
Keywords: quantitative estimation; emission lines; synthetic generated; composition ... See more keywords