BUBBLY: a method for detecting and characterizing interstellar bubbles using Fabry-Perot spectroscopy

Bibcode
2015MNRAS.447.3840C
DOI
10.1093/mnras/stu2623
Camps-Fariña, A.; Zaragoza-Cardiel, J.; Beckman, J. E.; Font, J.; García-Lorenzo, B.; Erroz-Ferrer, S.; Amram, P.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Volume 447, Issue 4, p.3840-3848

Advertised on:
3
2015
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
7
IAC number of authors
6
Citations
8
Refereed citations
7
Description
We present a new method for the detection and characterization of expansion in galaxy discs based on Hα Fabry-Perot spectroscopy, taking advantage of the high spatial and velocity resolution of our instrument (GHαFaS). The method analyses multipeaked emission line profiles to find expansion along the line of sight on a point-by-point basis. At this stage we have centred our attention on the large-scale structures of expanding gas associated with H II regions which show a characteristic pattern of expansion velocities, of the order of 100 km s-1, as a result of both bubble shape and projection effects. We show an example of the expansion map obtained with our method from a superbubble detected in the Antennae galaxies. We use the information obtained from the method to measure the relevant physical parameters of the superbubbles, including their ages which can be used to date young star clusters.
Related projects
Poster Almeria Astronomy week
Kinematic, Structural and Composition Studies of the Interstellar and Intergalactic Media

The basic objective of the broject is to investigate the evolution of galaxies by deepening our understanding of the interaction between the insterstellar medium and the stars.The main technique which we use is the two-dimensional kinematic study of whole galaxies observed using our instrument:GHaFaS, a Fabry-Perot interferometer on the William

Prof.
John E. Beckman
In progress
Supermassive black holes modify the distribution of molecular gas in the central regions of galaxies. Credit: HST and C. Ramos Almeida.
Nuclear Activity in Galaxies: a 3D Perspective from the Nucleus to the Outskirts

This project consists of two main research lines. First, the study of quasar-driven outflows in luminous and nearby obscured active galactic nuclei (AGN) and the impact that they have on their massive host galaxies (AGN feedback). To do so, we have obtained Gran Telescopio CANARIAS (GTC) infrared and optical observations with the instruments

Cristina
Ramos Almeida
In progress
Type
Refereed
H II regions
Galaxies
Formation & Evolution of Galaxies (FYEG)
Infrared instrumentation
Visible instrumentation

It may interest you

  • Refereed
    The discovery space of ELT-ANDES. Stars and stellar populations

    The ArmazoNes high Dispersion Echelle Spectrograph (ANDES) is the optical and near-infrared high-resolution echelle spectrograph envisioned for the Extremely Large Telescope (ELT). We present a selection of science cases, supported by new calculations and simulations, where ANDES could enable major advances in the fields of stars and stellar

    Roederer, Ian U. et al.

    Advertised on:

    4
    2024
    Bibcode
    2024ExA....57...17R
    Citations
    0
  • Refereed
    Euclid preparation. XXXVI. Modelling the weak lensing angular power spectrum

    This work considers which higher order modeling effects on the cosmic shear angular power spectra must be taken into account for Euclid. We identified the relevant terms and quantified their individual and cumulative impact on the cosmological parameter inferences from Euclid. We computed the values of these higher order effects using analytic

    Euclid Collaboration et al.

    Advertised on:

    4
    2024
    Bibcode
    2024A&A...684A.138E
    Citations
    4
  • Refereed
    The compact multi-planet system GJ 9827 revisited with ESPRESSO★

    GJ 9827 is a bright, nearby K7V star orbited by two super-Earths and one mini-Neptune on close-in orbits. The system was first discovered using K2 data and then further characterized by other spectroscopic and photometric instruments. Previous literature studies provide several mass measurements for the three planets, however, with large variations

    Passegger, V. M. et al.

    Advertised on:

    4
    2024
    Bibcode
    2024A&A...684A..22P
    Citations
    1