scholarly journals Emission-Line Diagnostics for Galaxies

2015 ◽  
Vol 11 (A29B) ◽  
pp. 264-264
Author(s):  
Lisa J. Kewley
Keyword(s):  
Star Formation ◽  
Emission Line ◽  
Power Sources ◽  
Star Forming ◽  
Spatially Resolved ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Yield Information ◽  
Ir Diagnostics ◽  
Integral Field

AbstractI will give an overview of the emission-line diagnostics used for star-forming galaxies. I will review the UV, optical, and IR diagnostics that can be used to yield information about the ISM conditions, star-formation properties, and power sources in GRB hosts, both globally, and with spatially-resolved data. I will discuss wide integral field spectroscopy and AO-led integral field spectroscopy on current and future telescopes, focusing on the insights to be gained on the properties of GRB sites.

scholarly journals Orientation of galactic bulge planetary nebulae toward the Galactic center

2014 ◽  
Vol 10 (S312) ◽  
pp. 128-130
Author(s):  
Ashkbiz Danehkar ◽  
Quentin A. Parker
Keyword(s):  
Emission Line ◽  
Galactic Center ◽  
Planetary Nebulae ◽  
Wide Field ◽  
Spatially Resolved ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
National University ◽  
Hα Emission ◽  
Integral Field

AbstractWe have used the Wide Field Spectrograph on the Australian National University 2.3-m telescope to perform the integral field spectroscopy for a sample of the Galactic planetary nebulae. The spatially resolved velocity distributions of the Hα emission line were used to determine the kinematic features and nebular orientations. Our findings show that some bulge planetary nebulae toward the Galactic center have a particular orientation.

scholarly journals THE SPATIALLY RESOLVED STAR FORMATION LAW FROM INTEGRAL FIELD SPECTROSCOPY: VIRUS-P OBSERVATIONS OF NGC 5194

2009 ◽  
Vol 704 (1) ◽  
pp. 842-862 ◽  
Author(s):  
Guillermo A. Blanc ◽  
Amanda Heiderman ◽  
Karl Gebhardt ◽  
Neal J. Evans ◽  
Joshua Adams
Keyword(s):  
Star Formation ◽  
Spatially Resolved ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Integral Field

scholarly journals Imminent understanding of the structure of nearby AGN from IFUs

2013 ◽  
Vol 9 (S304) ◽  
pp. 252-252
Author(s):  
Richard Davies
Keyword(s):  
Black Hole ◽  
Star Formation ◽  
Near Infrared ◽  
Far Infrared ◽  
Absorption Lines ◽  
Robust Approach ◽  
Spatially Resolved ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Integral Field

AbstractIntegral field spectroscopy provides us with immensely rich datasets about spatially resolved distributions and kinematics of emission and absorption lines. In this contribution I will describe some of the key insights that have been made about AGN using optical, near infrared, and far infrared IFUs. These encompass gas inflow and outflow mechanisms, and the relations between star formation, the torus, and accretion onto the black hole. Progress so far has largely relied on archetypal and small sets of objects. In the future, a more statistically robust approach will be required. I will end by discussing a number of issues that can easily confuse an emerging picture, and need to be borne in mind for such surveys.

scholarly journals Mapping the Dynamics of the Quasar 3C 48

2001 ◽  
Vol 205 ◽  
pp. 162-165
Author(s):  
Eleni T. Chatzichristou
Keyword(s):  
Emission Line ◽  
Radio Source ◽  
Star Forming ◽  
Physical Conditions ◽  
Star Forming Regions ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Ir Emission ◽  
Integral Field ◽  
Extended Emission

The archetypical, nearby (z=0.37) quasar 3C 48 is an unusual CSS radio source with excess far-IR emission, whose one-sided radio jet is aligned with the extended ionized emission and a putative second nucleus. Because of its high AGN luminosity and proximity, 3C 48 is a good candidate to search for kinematic signatures of the radio jet-gas coupling and/or of a recent interaction. The radio morphology and our ground-based integral field spectroscopy suggest that the jet is interacting with its immediate environment. Using STIS aboard HST in several slit positions within the central 1”, we map the kinematics and physical conditions of the extended emission line gas and their relations to near-nuclear star forming regions found in existing HST images.

scholarly journals Establishing the impact of powerful AGN on their host galaxies

2019 ◽  
Vol 15 (S359) ◽  
pp. 203-211
Author(s):  
C. M. Harrison ◽  
S. J. Molyneux ◽  
J. Scholtz ◽  
M. E. Jarvis
Keyword(s):  
Star Formation ◽  
Radio Emission ◽  
Emission Line ◽  
Spatial Scales ◽  
Gas Content ◽  
Host Galaxies ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
The Impact ◽  
Integral Field

AbstractEstablishing the role of active galactic nuclei (AGN) during the formation of galaxies remains one of the greatest challenges of galaxy formation theory. Towards addressing this, we summarise our recent work investigating: (1) the physical drivers of ionised outflows and (2) observational signatures of the impact by jets/outflows on star formation and molecular gas content in AGN host galaxies. We confirm a connection between radio emission and extreme ionised gas kinematics in AGN hosts. Emission-line selected AGN are significantly more likely to exhibit ionised outflows (as traced by the [O iii] emission line) if the projected linear extent of the radio emission is confined within the spectroscopic aperture. Follow-up high resolution radio observations and integral field spectroscopy of 10 luminous Type 2 AGN reveal moderate power, young (or frustrated) jets interacting with the interstellar medium. We find that these sources live in highly star forming and gas rich galaxies. Additionally, by combining ALMA-derived dust maps with integral field spectroscopy for eight host galaxies of z ≈ 2 X-ray AGN, we show that Hα emission is an unreliable tracer of star formation. For the five targets with ionised outflows we find no dramatic in-situ shut down of the star formation. Across both of these studies we find that if these AGN do have a negative impact upon their host galaxies, it must be happening on small (unresolved) spatial scales and/or an observable galaxy-wide impact has yet to occur.

scholarly journals Spatially resolved integral field spectroscopy of the ionized gas in IZw18

2016 ◽  
Vol 459 (3) ◽  
pp. 2992-3004 ◽  
Author(s):  
C. Kehrig ◽  
J. M. Vílchez ◽  
E. Pérez-Montero ◽  
J. Iglesias-Páramo ◽  
J. D. Hernández-Fernández ◽  
...  
Keyword(s):  
Ionized Gas ◽  
Spatially Resolved ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Integral Field

scholarly journals From star-forming spirals to passive spheroids: integral field spectroscopy of E+A galaxies

2011 ◽  
Vol 420 (1) ◽  
pp. 672-683 ◽  
Author(s):  
A. M. Swinbank ◽  
M. L. Balogh ◽  
R. G. Bower ◽  
A. I. Zabludoff ◽  
J. R. Lucey ◽  
...  
Keyword(s):  
Star Forming ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Integral Field

scholarly journals Do AGN suppress star formation in disc-dominated galaxies?

2012 ◽  
Vol 8 (S292) ◽  
pp. 373-373
Author(s):  
B. Husemann ◽  
J. Walcher ◽  
L. Wisotzki ◽  
J. Gerssen ◽  
K. Jahnke ◽  
...  
Keyword(s):  
Star Formation ◽  
Star Formation Rate ◽  
Formation Rate ◽  
Control Sample ◽  
Preliminary Results ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Integral Field

AbstractWe present preliminary results of our integral field spectroscopy (IFS) observations to test whether AGN can suppress star formation in disc-dominated galaxies. We find a lower specific star formation rate and a different radial Hα profile for AGN than in the control sample.

scholarly journals THE BLACK HOLE MASSES AND STAR FORMATION RATES OFz>1 DUST OBSCURED GALAXIES: RESULTS FROM KECK OSIRIS INTEGRAL FIELD SPECTROSCOPY

2011 ◽  
Vol 141 (4) ◽  
pp. 141 ◽  
Author(s):  
J. Melbourne ◽  
Chien Y. Peng ◽  
B. T. Soifer ◽  
Tanya Urrutia ◽  
Vandana Desai ◽  
...  
Keyword(s):  
Black Hole ◽  
Star Formation ◽  
Integral Field Spectroscopy ◽  
Field Spectroscopy ◽  
Black Hole Masses ◽  
Integral Field
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