TITLE

An atlas of star-forming galaxy equivalent widths

AUTHOR(S)
Meskhidze, Helen; Richardson, Chris
PUB. DATE
November 2017
SOURCE
Astrophysics & Space Science;Nov2017, Vol. 362 Issue 11, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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, we track 96 emission lines from 977 Ã… to $205~\upmu\mbox{m}$ which are common to nebular regions, have been observed in H II regions, and serve as useful diagnostic lines. Each simulation grid displays equivalent widths and contains $\sim1.5\times10^{4}$ photoionization models calculated by supplying a spectral energy distribution, chemical abundances, dust content, and gas metallicity (ranging from $0.2~Z _{\odot}$ to $5.0~Z _{\odot}$ ). Our simulations will prove useful in starburst emission line data analysis, especially regarding local starburst galaxies that show high ionization emission lines. One sample application of our atlas predicts that C IV $\lambda$ 1549 will serve as a useful diagnostic emission line of vigorous star formation for coming James Webb Space Telescope observations predicting a peak equivalent width of approximately 316 Ã….
ACCESSION #
126307951

 

Related Articles

  • The Circumnuclear Environment of IRAS 20551-4250: A Case Study of AGN/Starburst Connection for JWST. Sani, E.; Nardini, E. // Advances in Astronomy;2012, p1 

    We present a general review of the current knowledge of IRAS 20551-4250 and its circumnuclear environment. This Ultraluminous Infrared Galaxy is one of the most puzzling sources of its class in the nearby Universe: the near-IR spectrum is typical of a galaxy experiencing a very intense...

  • Detecting population III galaxies with HST and JWST. Zackrisson, E. // AIP Conference Proceedings;9/12/2012, Vol. 1480 Issue 1, p101 

    A small fraction of the atomic-cooling halos assembling at z < 15 may form out of minihalos that never experienced any prior star formation, and could in principle host small galaxies of chemically unenriched stars. Since the prospects of detecting isolated population III stars appear bleak even...

  • Narrow He II emission in star-forming galaxies at low metallicity. Gräfener, G.; Vink, J. S. // Astronomy & Astrophysics / Astronomie et Astrophysique;Jun2015, Vol. 578, p1 

    Context. In a recent study, star-forming galaxies with He ii 1640 emission at moderate redshifts between 2 and 4.6 have been found to occur in two modes that are distinguished by the width of their He ii emission lines. Broad He ii emission has been attributed to stellar emission from a...

  • Frozen In Time.  // Wired;Dec2014, Vol. 22 Issue 12, p185 

    The article focuses on the James Webb Space Telescope built by the U.S. National Aeronautics and Space Administration (NASA) that needs to be pre-chilled to be able to capture images of very dim, very old light from when the first galaxies were formed. Topics include the need for the Webb's...

  • The bimodality of type Ia Supernovae. Mannucci, F.; Panagia, N.; Valle, M. Della // AIP Conference Proceedings;10/2/2007, Vol. 937 Issue 1, p293 

    We comment on the presence of a bimodality in the distribution of delay time between the formation of the progenitors and their explosion as type Ia SNe. Two “flavors” of such bimodality are present in the literature: a weak bimodality, in which type Ia SNe must explode from both...

  • The universe contains 2 trillion galaxies.  // Science Scope;Dec2016, Vol. 40 Issue 4, p6 

    The article discusses a study that found two trillion galaxies in the Milky Way with the smaller ones merging with larger galaxies as observed through the Hubble space telescope. Topics include the astronomical paradox of a dark sky at night with an infinite number of stars as formulated by...

  • In search of the FIRST STARS. Villard, Ray // Astronomy;Jun2011, Vol. 39 Issue 6, p26 

    The article discusses research on stars that were the first ones to form in the universe and the envisioned use of the James Webb Space Telescope being constructed under the auspices of the U.S. National Aeronautics and Space Administration (NASA). Concepts regarding the Big Bang and light...

  • Far IR Properties of AGNs. The AGN-Starburst Connection. Masegosa, J.; Márquez, I.; Dultzin-Hacyan, D.; González-Martín, O. // AIP Conference Proceedings;2005, Vol. 761 Issue 1, p437 

    With the main goal of investigating the AGN and/or Starburst nature of LINERs, we have studied their FIR properties. Based on the classical indicators of Star Formation activity S25/S100 and the S60/S100 ratios, we have confirmed their heterogeous nature and they can be separated in three...

  • The dust SED in the dwarf galaxy NGC 1569: Indications for an altered dust composition? Lisenfeld, U.; Israel, F. P.; Stil, J. M.; Sievers, A.; Haas, M. // AIP Conference Proceedings;2005, Vol. 761 Issue 1, p239 

    We discuss the interpretation of the dust SED from the mid-infrared to the millimeter range of NGC 1569. The model developed by Désert et al. including three dust components (Polyaromatic Hydrocarbons, Very Small Grams and big grains) can explain the data using a realistic interstellar...

  • Modelling the UV to sub-mm SED of Starburst Galaxies. Dopita, Michael A. // AIP Conference Proceedings;2005, Vol. 761 Issue 1, p203 

    This paper reviews the theoretical modelling of starburst galaxies with particular emphasis on the importance of the gas-phase physics in determining the form of the continuum SED and the emission line spectrum. Both line and continuum diagnostics have been used as star formation indicators....

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics