The Metal content of dwarf starburst winds: Results from Chandra observations of NGC 1569
Mar, 2002
44 pages
Published in:
- Astrophys.J. 574 (2002) 663-692
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- astro-ph/0203513 [astro-ph]
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Abstract: (arXiv)
(Abridged) We present deep, Chandra spectral imaging of the dwarf starburst galaxy NGC 1569. The unprecedented spatial resolution allows us to spatially identify the components of the integrated \x spectrum. Fitted spectral models require an intrinsic absorption component and higher metal abundances than previous studies indicated. Our results provide the first direct evidence for metal-enriched winds from dwarf starburst galaxies.References(18)
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- •
- Astrophys.J. 502 (1998) 218
- e-Print:•
- DOI:
- 1985 Chevalier, R.Chevalier, R. & Clegg 1985, Nature & Fransson 2001 Dahlem, M., Weaver, K. A., Heckman, T 1998 Pence, W.deVaucouleurs, G., deVaucouleurs, A., & 1974 Ceca, R., Griffiths, R. E., Heckman, T. M., & MacKenty, J. W. Della 1996 Young, D. S., & Gallagher, J. S.De III Efstathiou, G. 2000
- W.B. Burton
- Astron.Astrophys.Suppl.Ser. 62 (1985) 365
- ,
- ,
- •
- Astrophys.J. 554 (2001) 1035-1043
- e-Print:•
- DOI:
- ,
- ,
- ,
- •
- Astrophys.J.Suppl. 129 (2000) 493-516
- e-Print:•
- DOI:
- Kobulnicky, H. A. & Skillman, E. D. 1998, Ann. Rev. A&A, 36, 189 1997 Zickgraf, F.-J., Appenzeller, I., Thiering, I., Voges, W., Chavarria, C., Kneer, R., Mujica, R., Pakull, M. W., Serrano, A., & Ziegler, B.Krautter, J 1999 Osterheld, A. L., & Goldstein, W. H.Liedahl, D. A Leitherer, C. et al. 1995, ApJ438, L115 1999
- R.C. Kennicutt
- Astrophys.J. 489 (1997) 636
- •
- Astrophys.J. 513 (1999) 142
- e-Print:•
- DOI:
- •
- Astrophys.J. 506 (1998) 222-252
- e-Print:•
- DOI:
- •
- Astrophys.J. 270 (1983) 119
- DOI:
- ,
- ,
- ,
- ,
- •
- Astrophys.J. 466 (1996) 686
- DOI:
- ,
- ,
- •
- Astrophys.J.Lett. 556 (2001) L63
- e-Print:•
- DOI:
- ,
- •
- Astrophys.J.Suppl. 35 (1977) 419-439
- DOI:
- •
- Astrophys.J. 440 (1995) 706
- DOI:
- 35 Shopbell, P. L., Buckalew, B. A., Dufour, R. J., Walter, D. K. 2001, ApJ, in press 2000 Tenorio-Tagle, G.Silich, S. & Songaila, A. & Cowie, L. L. 2001 Stil, J. M. & Israel, F. P. 1996, AJ, 112, 335 1998 Heckman, T. M., Weaver, K. A., Hoopes, C. G., & Dahlem, M.Strickland, D. K Strickland, D. K., Heckman, T. M., Weaver, K. A., Dahlem, M. 2001, ApJ, in press Suchkov, A. A., Berman, V.G., Heckman, T. M., & Balsara, D.S. 2000, AJ, 120, 2965 1996 Tanaka, Y., Inoue, H., Holt, S. S Taylor, C. L., Httemeister, S., Klein, U., & Greve, A. 1994, PSAJ, 46, 37 1999 Ghosh, K. K., Kolodziejczak, J. J., & Swartz, D. A.Tennant, A. F., Wu, K 2001 Tenorio-Tagle et al.Tenorio-Tagle, G. 1996, AJ, 111, 1641 Vader, J. P. 1999 mn 309, 332 1986 Heckman, T. M., & Dahlem, M.Weaver, K. A 2000 Sramek, R. A.Weiler, K. W., & 1988
- P. Rosati,
- P. Tozzi,
- R. Beacon
- Bull.Am.Astron.Soc. 197 (2000) 7418
- •
- Ann.Rev.Astron.Astrophys. 27 (1989) 279-349
- •
- Astrophys.J.Suppl. 101 (1995) 181-235
- DOI:
- 37- Table 1—Continued ID CXO Designation RA 2000 Dec 2000 Ctot CS CM CH RP SF Sν(3) err Sν(20) err R mag err log(fX /fV ) Type (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) 37 CXOU043114.0+645107 04 31 14.02 +64 51 07.9 773.0±28.4 286.4±17.4 343.6±19.1 143.9±12.5 1.00 <0.09 · · · <0.12 · · · 12.83 0.01 -4.83 Star 38 CXOU043114.5+645024 04 31 14.54 +64 50 24.5 57.3±8.1 1.3±1.5 5.5±2.7 51.5±7.7 1.13 <0.09 · · · <0.12 · · · >23.7 · · · >2.52 AGN 39 CXOU043116.8+644950 04 31 16.85 +64 49 50.0 4497.5±67.8 827.0±29.3 2160.5±47.0 1511.5±39.5 1.04 <0.09 · · · <0.12 · · · 12.77 0.01 -3.12 Star 40 CXOU043120.5+645122 04 31 20.51 +64 51 22.5 178.5±13.9 10.5±3.6 36.5±6.5 132.5±12.1 0.94 <0.09 · · · <0.12 · · · 22.23 0.16 2.31 AGN 41 CXOU043121.1+645029 04 31 21.12 +64 50 29.4 25.0±5.5 3.5±2.2 18.5±4.7 4.0±2.5 0.90 <0.09 · · · <0.12 · · · 20.26 0.06 -1.45 Star 42 CXOU043124.4+645115 04 31 24.47 +64 51 15.5 72.6±9.2 4.1±2.5 18.1±4.7 51.3±7.8 0.87 <0.09 · · · <0.12 · · · >23.7 · · · >2.75 AGN 43 CXOU043124.3+645121 04 31 24.38 +64 51 21.2 18.8±5.7 1.8±0.9 2.0±1.8 21.0±5.5 0.78 <0.09 · · · <0.12 · · · 21.26 0.07 -0.82 Star 44 CXOU043125.1+645154 04 31 25.16 +64 51 54.2 328.8±18.7 3.0±2.2 6.2±2.9 320.5±18.4 0.88 <0.09 · · · <0.12 · · · 19.67 0.03 0.57 AGN 45 CXOU043129.5+645053 04 31 29.52 +64 50 53.3 130.2±12.1 4.0±2.8 17.2±4.6 109.8±11.1 1.29 <0.09 · · · <0.12 · · · 20.91 0.05 0.78 AGN References. — (1) Reference ID # for this paper (2) Chandra X-Ray Observatory identifier (4) J2000 Declination
- J2000 Right Ascension
- from ACIS broadband image (15) R-band 1σ 16) Log of the ratio of X-ray to optical flux, fx/fV : for this purpose we use fx(erg s-1cm-2) = 5.1 × 10-18xCtot where Ctot is the number of detected photons from column 5 and fV (erg s-1cm-2) = 1.7 × 10-9 × 2.5-V where V is approximated by the R magnitude from column 14. (17) Probable source type based on X-ray, radio, optical fluxes or IDs. Objects with log(fx/fV ) < -0.5 we tentatively identify as stars Objects with log(fx/fV ) < -0.5 we tentatively identify as probable AGN. Objects in the disk of NGC 1569 without optical ID we identify as probable X-ray binaries
- Uncertainty