English
Related papers

Related papers: iSTARMOD: A Python Code to Quantify Chromospheric …

200 papers

Precision measurement of the cosmological recombination spectrum can provide an entire new window to look at the early universe. We aim to quantify the information hidden in the cosmological recombination spectrum and for this purpose we…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-05 Debajyoti Sarkar , Rishi Khatri

The code IAC-star is presented. It generates synthetic HR and color-magnitude diagrams (CMDs) and is mainly aimed to star formation history studies in nearby galaxies. Composite stellar populations are calculated on a star by star basis, by…

Astrophysics · Physics 2014-10-13 A. Aparicio , C. Gallart

Activity studies of solar-type stars, especially with reference to the status of our current Sun among them, have exposed the importance of (1) homogeneously selecting the sample stars and (2) reliably evaluating their activities down to a…

Solar and Stellar Astrophysics · Physics 2012-07-03 Yoichi Takeda , Akito Tajitsu , Satoshi Honda , Satoshi Kawanomoto , Hiroyasu Ando , Takashi Sakurai

In the interstellar medium, the cosmic elemental carbon abundance includes the total carbon in both gas and solid phases. The aim of the study was to trial a new method for measuring the amount and distribution of aliphatic carbon within…

Astrophysics of Galaxies · Physics 2020-02-13 B. Günay , M. G. Burton , M. Afşar , T. W. Schmidt

Surface albedo is an important parameter in radiative-transfer simulations of the Earth's system as it is fundamental for correctly calculating the energy budget of the planet. The Moderate Resolution Imaging Spectroradiometer (MODIS)…

Earth and Planetary Astrophysics · Physics 2026-05-27 Giulia Roccetti , Luca Bugliaro , Felix Gödde , Claudia Emde , Ulrich Hamann , Mihail Manev , Michael Sterzik , Cedric Wehrum

Spectro-microscopy is an experimental technique which can be used to observe spatial variations in chemical state and changes in chemical state over time or under experimental conditions. As a result it has broad applications across areas…

Medical Physics · Physics 2026-02-05 Maike Meier , Lorenzo Lazzarino , Boris Shustin , Hussam Al Daas , Paul Quinn

We introduce the cosmological HYPER code based on an innovative hydro-particle-mesh (HPM) algorithm for efficient and rapid simulations of gas and dark matter. For the HPM algorithm, we update the approach of Gnedin & Hui (1998) to expand…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 Yizhou He , Hy Trac , Nickolay Y. Gnedin

With the purpose of assessing classic spectroscopic methods on high-resolution and high signal-to-noise ratio spectra in the near-infrared wavelength region, we selected a sample of 65 F-, G-, and K-type stars observed with CARMENES, the…

Mostly multiband photometric transit observations have been used so far to retrieve broadband transmission spectra of transiting exoplanets in order to study their atmosphere. An alternative method has been proposed and has only been used…

Earth and Planetary Astrophysics · Physics 2020-03-25 S. Boldt , M. Oshagh , S. Dreizler , M. Mallonn , N. C. Santos , A. Claret , A. Reiners , E. Sedaghati

Several methods exist to convert near-infrared (NIR) stellar observations into extinction maps. We present a new method based on NIR multiband observations. The method uses a discretised version of the distribution of intrinsic stellar…

Astrophysics of Galaxies · Physics 2016-01-13 M. Juvela , J. Montillaud

Near-infrared array detectors, like the \JWST NIRSpec's Teledyne's H2RGs, often provide reference pixels and a reference output. These are used to remove correlated noise. Improved Reference Sampling and Subtraction (\IRSSquare, pronounced…

This is the first in a series of papers presenting methods and results from the Young Solar Analogs Project, which began in 2007. This project monitors both spectroscopically and photometrically a set of 31 young (300 - 1500 Myr) solar-type…

Solar and Stellar Astrophysics · Physics 2015-12-23 R. O. Gray , J. M. Saken , C. J. Corbally , M. M. Briley , R. A. Lambert , V. A. Fuller , I. M. Newsome , M. F. Seeds , Y. Kahvaz

STARBURST99 is a population synthesis code tailored to predict the integrated properties or observational characteristics of star-forming galaxies. Here we present an update to STARBURST99 where we port the code to python, include new…

We present scope (Simulated CCD Observations for Photometric Experimentation), a Python package to create a forward model of telescope detectors and simulate stellar targets with motion relative to the CCD. The primary application of this…

Instrumentation and Methods for Astrophysics · Physics 2019-05-08 Nicholas Saunders , Rodrigo Luger , Rory Barnes

We present a method to correct the chromatic and airmass dependent extinction for N-band spectra taken with the TIMMI2 instrument at the ESO / La Silla observatory. Usually, the target and calibrator star have to be observed at similar…

Astrophysics · Physics 2009-11-10 O. Schuetz , M. Sterzik

We present the first public version of SImMER, an open-source Python reduction pipeline for astronomical images of point sources. Current capabilities include dark-subtraction, flat-fielding, sky-subtraction, image registration, FWHM…

Instrumentation and Methods for Astrophysics · Physics 2022-12-28 Arjun B. Savel , Lea A. Hirsch , Holden Gill , Courtney D. Dressing , David R. Ciardi

The abundances of ices in planetary environments have historically been obtained through measurements of near-infrared absorption features (lambda = 1.0-2.5 microns), and near-IR transmission measurements of materials present in the…

Astrophysics · Physics 2009-11-10 P. A. Gerakines , J. J. Bray , A. Davis , C. R. Richey

Starfinder is an IDL code for the deep analysis of stellar fields, designed for well-sampled images with high and low Strehl factor. An important feature is represented by the possibility to measure the anisoplanatic effect in wide-field…

Astrophysics · Physics 2019-08-17 E. Diolaiti , O. Bendinelli , D. Bonaccini , L. Close , D. Currie , G. Parmeggiani

We study how the use of several stellar subtraction methods and line fitting approaches can affect the derivation of the main kinematic parameters (velocity and velocity dispersion fields) of the ionized gas component. The target of this…

Astrophysics of Galaxies · Physics 2019-05-22 E. Bellocchi , Y. Ascasibar , L. Galbany , S. F. Sanchez , H. Ibarra-Medel , M. Gavilan , A. Diaz

We generalize the technique of Lada et al. (1994) to map dust column density through a molecular cloud (NICE) to an optimized multi-band technique (NICER) that can be applied to any multi-band survey of molecular clouds. We present a first…

Astrophysics · Physics 2009-11-07 Marco Lombardi , Joao Alves
‹ Prev 1 3 4 5 6 7 10 Next ›