Abstract
We report multi-wavelength power spectra of diffuse Galactic dust emission from Balloon-borne Large Aperture Submillimeter Telescope observations at 250, 350, and 500 μm in Galactic plane fields in Cygnus X and Aquila. These submillimeter power spectra statistically quantify the self-similar structure observable over a broad range of scales and can be used to assess the cirrus noise which limits the detection of faint point sources. The advent of submillimeter surveys with the Herschel Space Observatory makes the wavelength dependence a matter of interest. We show that the observed relative amplitudes of the power spectra can be related through a spectral energy distribution (SED). Fitting a simple modified black body to this SED, we find the dust temperature in Cygnus X to be 19.8 ± 1.5 K and in the Aquila region 16.8 ± 0.8 K. Our empirical estimates provide important new insight into the substantial cirrus noise that will be encountered in forthcoming observations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1611-1620 |
| Number of pages | 10 |
| Journal | Astrophysical Journal |
| Volume | 708 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2010 |
| Externally published | Yes |
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Keywords
- Balloons
- ISM: clouds
- ISM: structure
- Submillimeter
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics
Cite this
BLAST05 : Power spectra of bright galactic cirrus at submillimeter wavelengths. / Roy, Arabindo; Ade, Peter A R; Bock, James J.; Chapin, Edward L.; Devlin, Mark J.; Dicker, Simon R.; Griffin, Matthew; Gundersen, Joshua O.; Halpern, Mark; Hargrave, Peter C.; Hughes, David H.; Klein, Jeff; Marsden, Gaelen; Martin, Peter G.; Mauskopf, Philip; Miville-Deschnes, Marc Antoine; Netterfield, Calvin B.; Olmi, Luca; Patanchon, Guillaume; Rex, Marie; Scott, Douglas; Semisch, Christopher; Truch, Matthew D P; Tucker, Carole; Tucker, Gregory S.; Viero, Marco P.; Wiebe, Donald V.
In: Astrophysical Journal, Vol. 708, No. 2, 2010, p. 1611-1620.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - BLAST05
T2 - Power spectra of bright galactic cirrus at submillimeter wavelengths
AU - Roy, Arabindo
AU - Ade, Peter A R
AU - Bock, James J.
AU - Chapin, Edward L.
AU - Devlin, Mark J.
AU - Dicker, Simon R.
AU - Griffin, Matthew
AU - Gundersen, Joshua O.
AU - Halpern, Mark
AU - Hargrave, Peter C.
AU - Hughes, David H.
AU - Klein, Jeff
AU - Marsden, Gaelen
AU - Martin, Peter G.
AU - Mauskopf, Philip
AU - Miville-Deschnes, Marc Antoine
AU - Netterfield, Calvin B.
AU - Olmi, Luca
AU - Patanchon, Guillaume
AU - Rex, Marie
AU - Scott, Douglas
AU - Semisch, Christopher
AU - Truch, Matthew D P
AU - Tucker, Carole
AU - Tucker, Gregory S.
AU - Viero, Marco P.
AU - Wiebe, Donald V.
PY - 2010
Y1 - 2010
N2 - We report multi-wavelength power spectra of diffuse Galactic dust emission from Balloon-borne Large Aperture Submillimeter Telescope observations at 250, 350, and 500 μm in Galactic plane fields in Cygnus X and Aquila. These submillimeter power spectra statistically quantify the self-similar structure observable over a broad range of scales and can be used to assess the cirrus noise which limits the detection of faint point sources. The advent of submillimeter surveys with the Herschel Space Observatory makes the wavelength dependence a matter of interest. We show that the observed relative amplitudes of the power spectra can be related through a spectral energy distribution (SED). Fitting a simple modified black body to this SED, we find the dust temperature in Cygnus X to be 19.8 ± 1.5 K and in the Aquila region 16.8 ± 0.8 K. Our empirical estimates provide important new insight into the substantial cirrus noise that will be encountered in forthcoming observations.
AB - We report multi-wavelength power spectra of diffuse Galactic dust emission from Balloon-borne Large Aperture Submillimeter Telescope observations at 250, 350, and 500 μm in Galactic plane fields in Cygnus X and Aquila. These submillimeter power spectra statistically quantify the self-similar structure observable over a broad range of scales and can be used to assess the cirrus noise which limits the detection of faint point sources. The advent of submillimeter surveys with the Herschel Space Observatory makes the wavelength dependence a matter of interest. We show that the observed relative amplitudes of the power spectra can be related through a spectral energy distribution (SED). Fitting a simple modified black body to this SED, we find the dust temperature in Cygnus X to be 19.8 ± 1.5 K and in the Aquila region 16.8 ± 0.8 K. Our empirical estimates provide important new insight into the substantial cirrus noise that will be encountered in forthcoming observations.
KW - Balloons
KW - ISM: clouds
KW - ISM: structure
KW - Submillimeter
UR - http://www.scopus.com/inward/record.url?scp=77950245935&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77950245935&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/708/2/1611
DO - 10.1088/0004-637X/708/2/1611
M3 - Article
AN - SCOPUS:77950245935
VL - 708
SP - 1611
EP - 1620
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
ER -