1. A New Perspective on Galaxy Outflows Glenn Kacprzak Kutching - Sept. 19 th 2014 N. Bouché (IRAP) C. Churchill (NMSU) J. Cooke (Swinburne) S. Ho (UCSB) E. Klimek (NMSU) A. LeReun (IRAP) C. Martin (UCSB) N. Nielsen (NMSU) I. Schroetter (IRAP)

2. How We Observe Outflows Transverse Absorption MgII 2796 2803

3. Kacprzak et al. 2013 Transverse Absorption

4. Kacprzak et al 2012 Also see: Bordoloi et al. 2011, Bouche et al. 2012, Lan et al. 2014. Kacprzak et al. 2013

5. Transverse Absorption Lehner et al. 2013Kacprzak et al 2012 Also see: Bordoloi et al. 2011, Bouche et al. 2012, Lan et al. 2014.

6. Two-Point Correlation Function The TPCF is obtained by taking the velocity differences between all pixel pairs in each system and binning them in velocity.

7. How We Observe Outflows Down-the-Barrel Absorption MgII 2796 2803

8. Weiner et al. 2009 Also see: Martin & Bouche 2009, Rubin et al. 2010, Steidel et al. 2010, Martin et al. 2012, Rubin et al. 2012, Bordoloi et al 2013. Down-the-Barrel Absorption Bordoloi et al 2013

9. How We Observe Outflows Wouldn’t it be great to do both at the same time? No examples of this yet until now Kacprzak et al 2014, ApJL, 792, 12

10. Keck/LRIS slit placed on the quasar and galaxy APO/DIS slit placed along the major-axis of the galaxy D=58 kpc i = 52 ± 5 degrees Quasar 3 degrees from minor axis Probing Transverse + Down-the-Barrel Absorption Kacprzak et al 2014

11. Blueshifted “Down-the-Barrel” and “Transverse” MgII wrt Ha [O/H] = -0.21±0.08 SFR = 4.6-15 Msun/yr Kacprzak et al 2014 Probing Transverse + Down-the-Barrel Absorption

12. Martin et al. 2012 model Single v=-45 ± 15 km/s Modeling Down-the-Barrel Absorption Fixed ISM - width=200 km/s Double v=-132 ± 25 km/s Correct for inclination -v dtb = 45-225 km/s Kacprzak et al 2014

13. Bouché et al. 2012 outflow model - constant winds - populated with 10 5 clouds - half opening angle = 30-45 degrees - perpendicular to the disk Modeling Transverse Absorption Kacprzak et al 2014

14. Best fit models yield v out =40-80 km/s This overlaps with v dtb =45-225 km/s Bouché et al. 2012 outflow model - constant winds - populated with 10 5 clouds - half opening angle = 30-45 degrees - perpendicular to the disk Kacprzak et al 2014 Modeling Transverse Absorption

15. Absorption Metallicity Kacprzak et al 2014

16. Absorption Metallicity log N(HI) = 18.89 ± 0.15 Transverse: -1.14 < X/H < -1.1 Kacprzak et al 2014 Galaxy : [O/H] = -0.21±0.08 If it is outflow, then we derive an gas outflow rate 1.6 - 4.2 Msun/yr And for galaxy SFR= 4.6-15 Msun/yr -> Mass loading factor = 0.1 - 0.9

17. Summary First detection of blueshifted down-the-barrel and transverse absorption. Both down-the-barrel and transverse models reproduce the absorption velocities indicating a kinematic connection. The combined geometry, kinematics and metallicity are suggestive that it is an outflow. The metallicity gradient from the galaxy (-0.21) to 58 kpc (-1.1) is suggestive that the gas is diluted or mixed during its journey.