SDSSp J104433.04-012502.2 at z = 5.74 is gravitationally magnified by an intervening galaxy

Yasuhiro Shioya; Yoshiaki Taniguchi; Takashi Murayama; Masaru Ajiki; Tohru Nagao; Shinobu S. Fujita; Yuko Kakazu; Yutaka Komiyama; Sadanori Okamura; Shinki Oyabu; Kimiaki Kawara; Youichi Ohyama; Koji S. Kawabata; Hiroyasu Ando; Tetsuo Nishimura; Masahiko Hayashi; Ryusuke Ogasawara; Shin Ichi Ichikawa

doi:10.1093/pasj/54.6.975

SDSSp J104433.04-012502.2 at z = 5.74 is gravitationally magnified by an intervening galaxy

Yasuhiro Shioya, Yoshiaki Taniguchi, Takashi Murayama, Masaru Ajiki, Tohru Nagao, Shinobu S. Fujita, Yuko Kakazu, Yutaka Komiyama, Sadanori Okamura, Shinki Oyabu, Kimiaki Kawara, Youichi Ohyama, Koji S. Kawabata, Hiroyasu Ando, Tetsuo Nishimura, Masahiko Hayashi, Ryusuke Ogasawara, Shin Ichi Ichikawa

SCI - Astronomy

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

15 Citations (Scopus)

Abstract

During the course of our optical deep survey program on La emitters at z ≈ 5.7 in the sky area surrounding the quasar SDSSp J104433.04-012502.2 at z = 5.74, we found that a faint galaxy with m_B(AB) ≈ 25 is located at 1.″9 southwest of the quasar. Its broad-band color properties from B to z′ suggest that the galaxy is located at a redshift of z ∼ 1.5-2.5. This is consistent with no strong emission line in our optical spectroscopy. Since the counter-image of the quasar cannot be seen in our deep optical images, the magnification factor seems not to be very high. Our modest estimate is that this quasar is gravitationally magnified by a factor of 2.

Original language	English
Pages (from-to)	975-979
Number of pages	5
Journal	Publication of the Astronomical Society of Japan
Volume	54
Issue number	6
DOIs	https://doi.org/10.1093/pasj/54.6.975
Publication status	Published - 2002

Keywords

Galaxies: high-redshift
Galaxies: quasars: individual (SDSSp J104433.04-012502.2)
Gravitational lensing

Access to Document

10.1093/pasj/54.6.975

Cite this

Shioya, Y., Taniguchi, Y., Murayama, T., Ajiki, M., Nagao, T., Fujita, S. S., Kakazu, Y., Komiyama, Y., Okamura, S., Oyabu, S., Kawara, K., Ohyama, Y., Kawabata, K. S., Ando, H., Nishimura, T., Hayashi, M., Ogasawara, R., & Ichikawa, S. I. (2002). SDSSp J104433.04-012502.2 at z = 5.74 is gravitationally magnified by an intervening galaxy. Publication of the Astronomical Society of Japan, 54(6), 975-979. https://doi.org/10.1093/pasj/54.6.975

@article{5879dcc7da8c45c49449a5b876f7c023,

title = "SDSSp J104433.04-012502.2 at z = 5.74 is gravitationally magnified by an intervening galaxy",

abstract = "During the course of our optical deep survey program on La emitters at z ≈ 5.7 in the sky area surrounding the quasar SDSSp J104433.04-012502.2 at z = 5.74, we found that a faint galaxy with mB(AB) ≈ 25 is located at 1.″9 southwest of the quasar. Its broad-band color properties from B to z′ suggest that the galaxy is located at a redshift of z ∼ 1.5-2.5. This is consistent with no strong emission line in our optical spectroscopy. Since the counter-image of the quasar cannot be seen in our deep optical images, the magnification factor seems not to be very high. Our modest estimate is that this quasar is gravitationally magnified by a factor of 2.",

keywords = "Galaxies: high-redshift, Galaxies: quasars: individual (SDSSp J104433.04-012502.2), Gravitational lensing",

author = "Yasuhiro Shioya and Yoshiaki Taniguchi and Takashi Murayama and Masaru Ajiki and Tohru Nagao and Fujita, {Shinobu S.} and Yuko Kakazu and Yutaka Komiyama and Sadanori Okamura and Shinki Oyabu and Kimiaki Kawara and Youichi Ohyama and Kawabata, {Koji S.} and Hiroyasu Ando and Tetsuo Nishimura and Masahiko Hayashi and Ryusuke Ogasawara and Ichikawa, {Shin Ichi}",

year = "2002",

doi = "10.1093/pasj/54.6.975",

language = "English",

volume = "54",

pages = "975--979",

journal = "Publication of the Astronomical Society of Japan",

issn = "0004-6264",

publisher = "Oxford University Press",

number = "6",

}

Shioya, Y, Taniguchi, Y, Murayama, T, Ajiki, M, Nagao, T, Fujita, SS, Kakazu, Y, Komiyama, Y, Okamura, S, Oyabu, S, Kawara, K, Ohyama, Y, Kawabata, KS, Ando, H, Nishimura, T, Hayashi, M, Ogasawara, R & Ichikawa, SI 2002, 'SDSSp J104433.04-012502.2 at z = 5.74 is gravitationally magnified by an intervening galaxy', Publication of the Astronomical Society of Japan, vol. 54, no. 6, pp. 975-979. https://doi.org/10.1093/pasj/54.6.975

TY - JOUR

T1 - SDSSp J104433.04-012502.2 at z = 5.74 is gravitationally magnified by an intervening galaxy

AU - Shioya, Yasuhiro

AU - Taniguchi, Yoshiaki

AU - Murayama, Takashi

AU - Ajiki, Masaru

AU - Nagao, Tohru

AU - Fujita, Shinobu S.

AU - Kakazu, Yuko

AU - Komiyama, Yutaka

AU - Okamura, Sadanori

AU - Oyabu, Shinki

AU - Kawara, Kimiaki

AU - Ohyama, Youichi

AU - Kawabata, Koji S.

AU - Ando, Hiroyasu

AU - Nishimura, Tetsuo

AU - Hayashi, Masahiko

AU - Ogasawara, Ryusuke

AU - Ichikawa, Shin Ichi

PY - 2002

Y1 - 2002

N2 - During the course of our optical deep survey program on La emitters at z ≈ 5.7 in the sky area surrounding the quasar SDSSp J104433.04-012502.2 at z = 5.74, we found that a faint galaxy with mB(AB) ≈ 25 is located at 1.″9 southwest of the quasar. Its broad-band color properties from B to z′ suggest that the galaxy is located at a redshift of z ∼ 1.5-2.5. This is consistent with no strong emission line in our optical spectroscopy. Since the counter-image of the quasar cannot be seen in our deep optical images, the magnification factor seems not to be very high. Our modest estimate is that this quasar is gravitationally magnified by a factor of 2.

AB - During the course of our optical deep survey program on La emitters at z ≈ 5.7 in the sky area surrounding the quasar SDSSp J104433.04-012502.2 at z = 5.74, we found that a faint galaxy with mB(AB) ≈ 25 is located at 1.″9 southwest of the quasar. Its broad-band color properties from B to z′ suggest that the galaxy is located at a redshift of z ∼ 1.5-2.5. This is consistent with no strong emission line in our optical spectroscopy. Since the counter-image of the quasar cannot be seen in our deep optical images, the magnification factor seems not to be very high. Our modest estimate is that this quasar is gravitationally magnified by a factor of 2.

KW - Galaxies: high-redshift

KW - Galaxies: quasars: individual (SDSSp J104433.04-012502.2)

KW - Gravitational lensing

UR - http://www.scopus.com/inward/record.url?scp=0036934786&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036934786&partnerID=8YFLogxK

U2 - 10.1093/pasj/54.6.975

DO - 10.1093/pasj/54.6.975

M3 - Article

AN - SCOPUS:0036934786

SN - 0004-6264

VL - 54

SP - 975

EP - 979

JO - Publication of the Astronomical Society of Japan

JF - Publication of the Astronomical Society of Japan

IS - 6

ER -

SDSSp J104433.04-012502.2 at z = 5.74 is gravitationally magnified by an intervening galaxy

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this