GALACTIC EXTINCTION and REDDENING from the SOUTH GALACTIC CAP u-BAND SKY SURVEY: U-BAND GALAXY NUMBER COUNTS and u-r COLOR DISTRIBUTION

Linlin Li; Shiyin Shen; Jinliang Hou; Fangting Yuan; Jing Zhong; Hu Zou; Xu Zhou; Zhaoji Jiang; Xiyan Peng; Dongwei Fan; Xiaohui Fan; Zhou Fan; Boliang He; Yipeng Jing; Michael Lesser; Cheng Li; Jun Ma; Jundan Nie; Jiali Wang; Zhenyu Wu; Tianmeng Zhang; Zhimin Zhou

doi:10.3847/1538-3881/153/2/88

GALACTIC EXTINCTION and REDDENING from the SOUTH GALACTIC CAP u-BAND SKY SURVEY: U-BAND GALAXY NUMBER COUNTS and u-r COLOR DISTRIBUTION

Linlin Li, Shiyin Shen, Jinliang Hou, Fangting Yuan, Jing Zhong, Hu Zou, Xu Zhou, Zhaoji Jiang, Xiyan Peng, Dongwei Fan, Xiaohui Fan, Zhou Fan, Boliang He, Yipeng Jing, Michael Lesser, Cheng Li, Jun Ma, Jundan Nie, Jiali Wang, Zhenyu WuTianmeng Zhang, Zhimin Zhou

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We study the integral Galactic extinction and reddening based on the galaxy catalog of the South Galactic Cap u-band Sky Survey (SCUSS), where u-band galaxy number counts and u-r color distribution are used to derive the Galactic extinction and reddening respectively. We compare these independent statistical measurements with the reddening map of Schlegel et al. (SFD) and find that both the extinction and reddening from the number counts and color distribution are in good agreement with the SFD results at low extinction regions (E (B - V)^SFD < 0.12 mag). However, for high extinction regions (E (B - V)^SFD > 0.12 mag), the SFD map overestimates the Galactic reddening systematically, which can be approximated by a linear relation E(B V) =0.43(E(B - V)^SFD -0.12). By combining the results from galaxy number counts and color distribution, we find that the shape of the Galactic extinction curve is in good agreement with the standard R_V = 3.1 extinction law of O'Donnell.

Original language	English (US)
Article number	88
Journal	Astronomical Journal
Volume	153
Issue number	2
DOIs	https://doi.org/10.3847/1538-3881/153/2/88
State	Published - Feb 2017

Keywords

dust
extinction
methods: statistical
techniques: photometric

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/153/2/88

Cite this

Li, L., Shen, S., Hou, J., Yuan, F., Zhong, J., Zou, H., Zhou, X., Jiang, Z., Peng, X., Fan, D., Fan, X., Fan, Z., He, B., Jing, Y., Lesser, M., Li, C., Ma, J., Nie, J., Wang, J., ... Zhou, Z. (2017). GALACTIC EXTINCTION and REDDENING from the SOUTH GALACTIC CAP u-BAND SKY SURVEY: U-BAND GALAXY NUMBER COUNTS and u-r COLOR DISTRIBUTION. Astronomical Journal, 153(2), Article 88. https://doi.org/10.3847/1538-3881/153/2/88

Li, L, Shen, S, Hou, J, Yuan, F, Zhong, J, Zou, H, Zhou, X, Jiang, Z, Peng, X, Fan, D, Fan, X, Fan, Z, He, B, Jing, Y, Lesser, M, Li, C, Ma, J, Nie, J, Wang, J, Wu, Z, Zhang, T & Zhou, Z 2017, 'GALACTIC EXTINCTION and REDDENING from the SOUTH GALACTIC CAP u-BAND SKY SURVEY: U-BAND GALAXY NUMBER COUNTS and u-r COLOR DISTRIBUTION', Astronomical Journal, vol. 153, no. 2, 88. https://doi.org/10.3847/1538-3881/153/2/88

@article{3c12182a20654572a77eea1a46301317,

title = "GALACTIC EXTINCTION and REDDENING from the SOUTH GALACTIC CAP u-BAND SKY SURVEY: U-BAND GALAXY NUMBER COUNTS and u-r COLOR DISTRIBUTION",

abstract = "We study the integral Galactic extinction and reddening based on the galaxy catalog of the South Galactic Cap u-band Sky Survey (SCUSS), where u-band galaxy number counts and u-r color distribution are used to derive the Galactic extinction and reddening respectively. We compare these independent statistical measurements with the reddening map of Schlegel et al. (SFD) and find that both the extinction and reddening from the number counts and color distribution are in good agreement with the SFD results at low extinction regions (E (B - V)SFD < 0.12 mag). However, for high extinction regions (E (B - V)SFD > 0.12 mag), the SFD map overestimates the Galactic reddening systematically, which can be approximated by a linear relation E(B V) =0.43(E(B - V)SFD -0.12). By combining the results from galaxy number counts and color distribution, we find that the shape of the Galactic extinction curve is in good agreement with the standard RV = 3.1 extinction law of O'Donnell.",

keywords = "dust, extinction, methods: statistical, techniques: photometric",

author = "Linlin Li and Shiyin Shen and Jinliang Hou and Fangting Yuan and Jing Zhong and Hu Zou and Xu Zhou and Zhaoji Jiang and Xiyan Peng and Dongwei Fan and Xiaohui Fan and Zhou Fan and Boliang He and Yipeng Jing and Michael Lesser and Cheng Li and Jun Ma and Jundan Nie and Jiali Wang and Zhenyu Wu and Tianmeng Zhang and Zhimin Zhou",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (NSFC) with the Project Numbers 11573050, 11433003, 11433005, the 973 Program 2014 CB845705 and the Strategic Priority Research Program The Emergence of Cosmological Structures of the Chinese Academy of Sciences (CAS; grant XDB09030200). Y.F.T. is supported by NSFC with No.11303070. Publisher Copyright: {\textcopyright} 2017. The American Astronomical Society. All rights reserved.",

year = "2017",

month = feb,

doi = "10.3847/1538-3881/153/2/88",

language = "English (US)",

volume = "153",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "2",

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TY - JOUR

T1 - GALACTIC EXTINCTION and REDDENING from the SOUTH GALACTIC CAP u-BAND SKY SURVEY

T2 - U-BAND GALAXY NUMBER COUNTS and u-r COLOR DISTRIBUTION

AU - Li, Linlin

AU - Shen, Shiyin

AU - Hou, Jinliang

AU - Yuan, Fangting

AU - Zhong, Jing

AU - Zou, Hu

AU - Zhou, Xu

AU - Jiang, Zhaoji

AU - Peng, Xiyan

AU - Fan, Dongwei

AU - Fan, Xiaohui

AU - Fan, Zhou

AU - He, Boliang

AU - Jing, Yipeng

AU - Lesser, Michael

AU - Li, Cheng

AU - Ma, Jun

AU - Nie, Jundan

AU - Wang, Jiali

AU - Wu, Zhenyu

AU - Zhang, Tianmeng

AU - Zhou, Zhimin

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (NSFC) with the Project Numbers 11573050, 11433003, 11433005, the 973 Program 2014 CB845705 and the Strategic Priority Research Program The Emergence of Cosmological Structures of the Chinese Academy of Sciences (CAS; grant XDB09030200). Y.F.T. is supported by NSFC with No.11303070. Publisher Copyright: © 2017. The American Astronomical Society. All rights reserved.

PY - 2017/2

Y1 - 2017/2

N2 - We study the integral Galactic extinction and reddening based on the galaxy catalog of the South Galactic Cap u-band Sky Survey (SCUSS), where u-band galaxy number counts and u-r color distribution are used to derive the Galactic extinction and reddening respectively. We compare these independent statistical measurements with the reddening map of Schlegel et al. (SFD) and find that both the extinction and reddening from the number counts and color distribution are in good agreement with the SFD results at low extinction regions (E (B - V)SFD < 0.12 mag). However, for high extinction regions (E (B - V)SFD > 0.12 mag), the SFD map overestimates the Galactic reddening systematically, which can be approximated by a linear relation E(B V) =0.43(E(B - V)SFD -0.12). By combining the results from galaxy number counts and color distribution, we find that the shape of the Galactic extinction curve is in good agreement with the standard RV = 3.1 extinction law of O'Donnell.

AB - We study the integral Galactic extinction and reddening based on the galaxy catalog of the South Galactic Cap u-band Sky Survey (SCUSS), where u-band galaxy number counts and u-r color distribution are used to derive the Galactic extinction and reddening respectively. We compare these independent statistical measurements with the reddening map of Schlegel et al. (SFD) and find that both the extinction and reddening from the number counts and color distribution are in good agreement with the SFD results at low extinction regions (E (B - V)SFD < 0.12 mag). However, for high extinction regions (E (B - V)SFD > 0.12 mag), the SFD map overestimates the Galactic reddening systematically, which can be approximated by a linear relation E(B V) =0.43(E(B - V)SFD -0.12). By combining the results from galaxy number counts and color distribution, we find that the shape of the Galactic extinction curve is in good agreement with the standard RV = 3.1 extinction law of O'Donnell.

KW - dust

KW - extinction

KW - methods: statistical

KW - techniques: photometric

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U2 - 10.3847/1538-3881/153/2/88

DO - 10.3847/1538-3881/153/2/88

M3 - Article

AN - SCOPUS:85012285794

SN - 0004-6256

VL - 153

JO - Astronomical Journal

JF - Astronomical Journal

IS - 2

M1 - 88

ER -

GALACTIC EXTINCTION and REDDENING from the SOUTH GALACTIC CAP u-BAND SKY SURVEY: U-BAND GALAXY NUMBER COUNTS and u-r COLOR DISTRIBUTION

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