Tracing the Extent of Narrow Line Emission in Type II QSOs

Greene et al. (2011)

Using SALT RSS longslit spectra of nearby Type II QSOs, we can measure the extent of the narrow-line region, and compare to the size of the galaxy stellar continuum.

Surf

ace

Brig

htne

ss

Spatial Position (pixel)

2.0”

To estimate the spatial extent of our features, we deconvolve our observed lines with the seeing, and use a width that represents 10% of the maximum surface brightness.

SDSS J081125.8+073235.4z = 0.35

[OIII] 5007

At z = 0.35, 2” corresponds to 9.9 kpc.

(log R/pc = 3.99)

Kevin Hainline & Ryan Hickox

SDSS J084107.1+033441.3Type II QSOz = 0.27

20”

Top of slit

Galaxy rotation as measured through [OIII] 5007 narrow-line emission.

20”

Top of slit

SDSS J122217.9-00743.8Type II QSOz = 0.17

A dual AGN, with [OIII] tracing the movement of both galaxies.

I also wrote up my longslit reduction recipe here:

http://www.astro.ucla.edu/~kevinhainline/salt_redux.html

(or http://goo.gl/t4MPM)

The site describes basic longslit reduction in a similar manner to what is described on the SALT wiki.

Finally, I think SALT data could use extra information in the image headers, such as a calculation of the airmass and sidereal time for the observation.

Overall, while it would be good if there was some way of obtaining absolute flux calibration, there is a variety of science that we have been doing without an estimate of the absolute fluxes.

Rapid Supernova Identificationand Follow-up With SALT

Paper submitted

Paper forthcoming

Papers forthcoming (DIBs changing!)

Paper forthcoming

PI: Robert FesenCoI: Dan MilisavljevicCoI: Tim Pickering

A Target of Opportunity (ToO) campaign to classify nearby supernova candidates soon after they are discovered. Supernovae of interest may be monitored with additional follow-up spectra. The program is straightforward with rapid turn-around betweeninitial observations and published identifications.

This is paper one of many on the way.

We are very grateful for help from:T. Pickering, S. Crawford, A. Kniazev, P. Kotze, Encarni Romero-Colmenero,Petri Vaisanen, Christian Hettlage, & A. Gulbis

Questions:

• Can method of triggering Target of Opportunity programs be improved? Currently need to email on case-by-case basis to request to unlock proposal and this isn’t always convenient.

• Is there a way to rapidly access via web how many hours are left in a TOO program?

•Do leftover TOO hours from one semester carry over into the next?

• What is the official procedure when two TOO programs trigger on the same object?

Rapid Supernova Identificationand Follow-up With SALT