The Circumnuclear Starburst Ring In NGC 1097 Beverly

The Circumnuclear Starburst Ring In NGC 1097 Beverly Thackeray-Lacko CSUSB http: //apod. nasa. gov/apod/image/1501/NGC 1097_newmaster 3 starshadows. jpg

What we know. . Well Studied Nearby 14. 5 MPC 45 Million Ly Interesting Features Barred Spiral Galaxy Starbursting Nuclear Ring 700 Parsecs in Radius 5, 500 Light-years in Radius 5 Mʘ per year AGN Low Luminosity 140 Million Mʘ Orientation Face-On Lots of data across many frequencies

Starbursting circum-nuclear ring https: //www. eso. org/public/images/eso 0534 a/

What is an SED? : http: //candels-collaboration. blogspot. com/2012/08/the-multiwavelength-shapes-of-galaxies. html http: //almaost. jb. man. ac. uk/ https: //www. eso. org/public/images/eso 0534 a/ Dale et al. 2007

What does SED tell us? Age of stellar population Star formation rate Dust qualities AGN properties http: //ned. ipac. caltech. edu/level 5/March 05/Leitherer/Figures/figure 6. jpg http: //ned. ipac. caltech. edu/level 5/March 13/Lagache/Figures/figure 1. jpg

DATA Ultraviolet GALEX Poor resolution ~ 4 arcsec Optical CTIO 1. 5 m telescope B, V, R, I ~ 2 arcsec Infrared IRAC Bands 1 and 2 ~ 2. 4 arcsec http: //galex. stsci. edu/GR 6/ http: //irsa. ipac. caltech. edu/data/SPITZER/SINGS/ http: //irsa. ipac. caltech. edu/data/SPITZER/S 4 G/galaxies/NGC 1097. html Radio ALMA Cycle 0 Band 3: 3. 2 mm Wavelength 93 GHz 2. 2 X 1. 64 arcsec 2. 2 arcsec = 155 Pc Band 7: 8. 55 mm Wavelength 349 GHz 1. 52 X 1. 21 arcsec 1. 52 arcsec = 107 Pc

How to create an SED: Reduce DATA Cycle 0 ALMA Alma 3 contours at 4 σ Regrid Re-pixels images Convolve Use worst resolution Convert Units Jy / beam IRAC band 1 3. 6 μm IRAC band 2 4. 5 μm Galex FUV 1350 -1780 Å Galex NUV 1770 -2730 Å CTIO I. 90 μm CTIO R. 70 μm CTIO V. 54 μm CTIO B. 43 μm ALMA 7. 85 mm. Outline Ring Define ring? Subtract background 1. 5 x radius of outer ring

Results:

Conclusions and Future work: SED’s are challenging! There is more work ahead Create error bars Fit an SED to circumnuclear ring Examine regions of interest within ring

Diversity

Acknowledgements: Kertik Sheth Sabrina Stierwalt Drew Brisbin Loreto Barcos Arielle Moullet Data Analysts Kimberly Sokal Adam Trapp Brittney High National Astronomy Consortium https: //science. nrao. edu/opportunities/student-programs/nac/ NRAO