Analytic Marginalization of Absorption Line Continua
نویسندگان
چکیده
منابع مشابه
Analytic marginalization over CMB calibration and beam uncertainty
With the increased accuracy and angular scale coverage of the recent CMB experiments it has become important to include calibration and beam uncertainties when estimating cosmological parameters. This requires an integration over possible values of the calibration and beam size, which can be performed numerically but greatly increases computation times. We present a fast and general method for ...
متن کاملNew continua for absorption spectroscopy from 40 to 2000 A.
The spectra of plasmas produced by focusing the output of a Q-switched ruby laser (output I J) on the rare-earth metals have been studied. From samarium (Z = 62) to ytterbium (Z = 70), strong quasi-uniform continua are emitted in the wavelength range 40-2000 A. Line emission from the target elements is absent over most of this wavelength region, particularly below about 600 A. The use of these ...
متن کاملClustering of absorption line systems
Absorption line systems are luminosity unbiased tracers of the spatial distribution of baryons over most of the history of the Universe. I review the importance of studying the clustering properties of the absorbers and the impact of VLT in this subject. The primary aim of the project is to track the evolution of the structures of the Universe back in time.
متن کاملA Balmer-line Broad Absorption Line Quasar
I report the discovery of blueshifted broad absorption line (BAL) troughs in at least six transitions of the Balmer series of hydrogen (Hβ to H9) and in Ca II, Mg II and excited Fe II in the quasar SDSS J125942.80+121312.6. This is only the fourth active galactic nucleus known to exhibit Balmer absorption, all four in conjunction with low-ionization BAL systems containing excited Fe II. The sub...
متن کاملGrowth of Analytic Functions Along a Line.
Let J(z) be regular and of exponential type less than wr in the half plane x _ 0, and let I Xn } be an increasing positive sequence of unit density such that Xn+1 -n _ 5 > 0. It is known that under suitable restrictions and with a suitable measure of growth, the growth of the sequence tf(Xn) determines the growth off(x) for real x > 0. I have established the following results. Let e(x) be a con...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2020
ISSN: 1538-3881
DOI: 10.3847/1538-3881/ab602c