Spitzer/mips infrared imaging of m31: further evidence for a spiral/ring composite structure
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Cites background from "Spitzer/mips infrared imaging of m3..."
...It has a very low I70/I160, implying very low radiation fields or colder dust temperatures (Gordon et al. 2006)....
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...Gordon et al. (2006) present Spitzer maps at 24, 70, and 160µm....
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357 citations
Cites background from "Spitzer/mips infrared imaging of m3..."
...…(nearby galaxies) observed by the Spitzer legacy teams SINGS (Spitzer Infrared Nearby Galaxies Survey; Kennicutt et al. 2003) and SAGE (Surveying the Agents of a Galaxy’s Evolution; Meixner et al. 2006) and by guaranteed time observers (Hinz et al. 2004; Gordon et al. 2006a,b) to IRAS measurements....
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350 citations
Cites background from "Spitzer/mips infrared imaging of m3..."
...At least one recent, high-metallicity accretion event is evidenced by the “giant stream” structure (Ibata et al. 2001a) and Spitzer MIPS imaging has revealed a nearly circular, ∼ 10 kpc star-forming ring that may have been triggered by a past disk interaction (Gordon et al. 2006)....
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References
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"Spitzer/mips infrared imaging of m3..." refers methods in this paper
...The dynamical effects that M32 and NGC 205 have on M31 were investigated by running a number of numerical simulations of the M31-M32 and M31NGC 205 interactions using GADGET2 (Springel et al. 2001; Springel 2005)....
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"Spitzer/mips infrared imaging of m3..." refers background or methods in this paper
...If we use a mass of 2× 109 M⊙ for M32, as suggested by Mateo (1998), very little effect is seen on the disk of M31, suggesting that M32 may be more massive than previously thought....
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...The mass of NGC 205 is uncertain (Mateo (1998) calculates a mass of approximately 8× 108 M⊙) and therefore its ability to strongly affect the disk of M31 is equally uncertain....
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...M32 and NGC 205 are modeled as point particles, with radial velocities taken from Mateo (1998)....
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...In Figure 3 we show an image of one such simulation of M31 after an interaction with M32, assuming that M32 currently lies 8 kpc behind the nucleus of M31, has a velocity in the plane of the sky of 200 km s−1 SSE, and has a mass of 1 × 1010 M⊙ (3–5 times larger than current estimates (Mateo 1998))....
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2,370 citations
"Spitzer/mips infrared imaging of m3..." refers background or methods in this paper
...The uncertainties are dominated by the systematic uncertainties in the MIPS calibration (Rieke et al. 2004)....
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...We present new infrared images of M31 taken with the Multiband Imaging Photometer for Spitzer (MIPS, Rieke et al. 2004) instrument on the Spitzer Space Telescope (Spitzer, Werner et al. 2004)....
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