Disk Mass-to-light Ratio Distribution from Stellar Population Synthesis: Application to Rotation Curve Decomposition of NGC 5278 (KPG 390 A)

  title={Disk Mass-to-light Ratio Distribution from Stellar Population Synthesis: Application to Rotation Curve Decomposition of NGC 5278 (KPG 390 A)},
  author={Paolo Repetto and Eric E. Mart'inez-Garc'ia and Margarita Rosado and Ruslan F. Gabbasov},
  journal={The Astrophysical Journal},
In this work we extend the study on the mass distribution of the spiral galaxy NGC 5278, performing 1D and 2D (GALFIT) bulge-disk decomposition to determine which components constitute the baryonic mass in this galaxy. Our analysis does not detect any bulge; instead we find a bright source probably related to the central active galactic nucleus and an exponential disk. We fix the stellar disk contribution to the rotation curve (RC) with broadband photometric observations and population… 
On the Thermally Pulsing Asymptotic Giant Branch Contribution to the Light of Nearby Disk Galaxies
The study of the luminosity contribution from thermally pulsing asymptotic giant branch (TP-AGB) stars to the stellar populations of galaxies is crucial to determine their physical parameters (e.g.,
Outer and inner mass distributions of the irregular galaxies UGC 4284 and UGC 11861: Constraining the baryonic content through stellar population synthesis studies
In this article we investigate the outer and inner mass distributions of the irregular galaxies UGC 4284 and UGC 11861, taking advantage of published HI and H{\alpha} high resolution rotation curves
Removing Biases in Resolved Stellar Mass Maps of Galaxy Disks through Successive Bayesian Marginalization
Stellar masses of galaxies are frequently obtained by fitting stellar population synthesis models to galaxy photometry or spectra. The state of the art method resolves spatial structures within a
Mass content of UGC 6446 and UGC 7524 through H I rotation curves: deriving the stellar discs from stellar population synthesis models
In this work we study the mass distribution of two irregular galaxies, UGC 6446 and UGC 7524, by means of HI rotation curves derived from high resolution HI velocity fields obtained through the
We present comprehensive multiwavelength observations of three gamma-ray bursts (GRBs) with durations of several thousand seconds. We demonstrate that these events are extragalactic transients; in
Broadband Photometric Reverberation Mapping Analysis on SDSS-RM and Stripe 82 Quasars
We modified the broadband photometric reverberation mapping (PRM) code, JAVELIN, and tested the availability to get broad line region (BLR) time delays that are consistent with the spectroscopic
Rotational and Infrared Spectroscopy of Ethanimine: A Route toward Its Astrophysical and Planetary Detection
Ethanimine, a possible precursor of amino acids, is considered an important prebiotic molecule and thus may play important roles in the formation of biological building blocks in the interstellar
The challenging playground of astrochemistry: an integrated rotational spectroscopy - quantum chemistry strategy.
An integrated rotational spectroscopy - quantum chemistry approach for supporting radioastronomical observations and a computational strategy for contributing to the elucidation of chemical reactivity in the interstellar space are presented.


Accurate Parameters of the Mass Distribution in Spiral Galaxies. I. Fabry-Perot Observations of NGC 5585
Using the example of the Sd galaxy NGC 5585, it is shown that high-resolution, two-dimensional H II kinematical data are necessary to determine accurately the parameters of the mass (luminous and
Distribution of dark matter in the spiral galaxy NGC 3198.
Two-component mass models, consisting of an exponential disk and a spherical halo, are constructed to fit a newly determined rotation curve of NGC 3198 that extends to 11 disk scale lengths. The
Improved Modeling of the Mass Distribution of Disk Galaxies by the Einasto Halo Model
Analysis of the rotation curves (RCs) of spiral galaxies provides an efficient diagnostic for studying the properties of dark matter halos and their relations with baryonic material. Since the cored
The Central mass distribution in dwarf and low-surface brightness galaxies
We present high-resolution Hrotation curves for a sample of 15 dwarf and low surface brightness galaxies. From these we derive limits on the slopes of the central mass distributions, using both a
I investigate the baryonic Tully-Fisher relation for a sample of galaxies with extended 21 cm rotation curves spanning the range 20 km s-1 Vf ? 300 km s-1. A variety of scalings of the stellar
The Interacting Galaxy Pair KPG 390: Hα Kinematics
In this work, we present scanning Fabry-Perot (FP) Hα observations of the isolated interacting galaxy pair NGC 5278/79 obtained with the PUMA FP interferometer. We derived velocity fields and
GHASP: an Hα kinematic survey of spiral and irregular galaxies – V. Dark matter distribution in 36 nearby spiral galaxies
The results obtained from a study of the mass distribution of 36 spiral galaxies are presented. The galaxies were observed using Fabry-Perot interferometry as part of the GHASP survey. The main aim
Kinematics and dynamics of the M 51-type galaxy pair NGC 3893/96 (KPG 302)
We study the kinematics and dynamics of the M51-type interacting galaxy pair KPG 302 (NGC 3893/96). We analyse the distribution of the dark matter (DM) halo of the main galaxy in order to explore
Rotational properties of 21 SC galaxies with a large range of luminosities and radii, from NGC 4605 /R = 4kpc/ to UGC 2885 /R = 122 kpc/
For 21 Sc galaxies whose properties encompass a wide range of radii, masses, and luminosities, we have obtained major axis spectra extending to the faint outer regions, and have deduced rotation
The inner structure of ΛCDM haloes – III. Universality and asymptotic slopes
We investigate the mass profile of cold dark matter (ACDM) haloes using a suite of numerical simulations spanning five decades in halo mass, from dwarf galaxies to rich galaxy clusters. These haloes