PLCK G165.7+67.0

Analysis of a Massive Lensing Cluster in a Hubble Space Telescope Census of Submillimeter Giant Arcs Selected Using Planck/Herschel

Brenda L. Frye, Massimo Pascale, Yujing Qin, Adi Zitrin, José Diego, Greg Walth, Haojing Yan, Christopher J. Conselice, Mehmet Alpaslan, Adam Bauer, Lorenzo Busoni, Dan Coe, Seth H. Cohen, Hervé Dole, Megan Donahue, Iskren Georgiev, Rolf A. Jansen, Marceau Limousin, Rachael Livermore, Dara Norman & 2 others Sebastian Rabien, Rogier Windhorst

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present Hubble Space Telescope WFC3-IR imaging in the fields of six apparently bright dusty star-forming galaxies (DSFGs) at z = 2-4 identified by their rest-frame far-infrared colors using the Planck and Herschel space facilities. We detect near-infrared counterparts for all six submillimeter sources, allowing us to undertake strong-lensing analyses. One field in particular stands out for its prominent giant arcs, PLCK G165.7+67.0 (G165). After combining the color and morphological information, we identify 11 sets of image multiplicities in this one field. We construct a strong-lensing model constrained by this lensing evidence, which uncovers a bimodal spatial mass distribution, and from which we measure a mass of (2.6 ±0.11) ×10 14 M o within ∼250 kpc. The bright (S 350 ≈ 750 mJy) DSFG appears as two images: a giant arc with a spatial extent of that is merging with the critical curve, and a lower-magnification counterimage that is detected in our new longer-wavelength ground- and space-based imaging data. Using our ground-based spectroscopy, we calculate a dynamical mass of M o to the same fixed radius, although this value may be inflated relative to the true value if the velocity distribution is enhanced in the line-of-sight direction. We suggest that the bimodal mass taken in combination with the weak X-ray flux and low SZ decrement may be explained as a pre-merger for which the intracluster gas is diluted along the line of sight, while the integrated surface mass density is supercritical to strong-lensing effects.

Original languageEnglish (US)
Article number51
JournalAstrophysical Journal
Volume871
Issue number1
DOIs
StatePublished - Jan 20 2019
Externally publishedYes

Fingerprint

census
Hubble Space Telescope
arcs
line of sight
galaxies
color
stars
magnification
mass distribution
velocity distribution
merger
near infrared
radii
spectroscopy
analysis
wavelength
curves
gases
wavelengths
x rays

Keywords

  • galaxies: clusters: general
  • galaxies: fundamental parameters
  • galaxies: high-redshift
  • gravitational lensing: strong
  • submillimeter: galaxies

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

PLCK G165.7+67.0 : Analysis of a Massive Lensing Cluster in a Hubble Space Telescope Census of Submillimeter Giant Arcs Selected Using Planck/Herschel. / Frye, Brenda L.; Pascale, Massimo; Qin, Yujing; Zitrin, Adi; Diego, José; Walth, Greg; Yan, Haojing; Conselice, Christopher J.; Alpaslan, Mehmet; Bauer, Adam; Busoni, Lorenzo; Coe, Dan; Cohen, Seth H.; Dole, Hervé; Donahue, Megan; Georgiev, Iskren; Jansen, Rolf A.; Limousin, Marceau; Livermore, Rachael; Norman, Dara; Rabien, Sebastian; Windhorst, Rogier.

In: Astrophysical Journal, Vol. 871, No. 1, 51, 20.01.2019.

Research output: Contribution to journalArticle

Frye, BL, Pascale, M, Qin, Y, Zitrin, A, Diego, J, Walth, G, Yan, H, Conselice, CJ, Alpaslan, M, Bauer, A, Busoni, L, Coe, D, Cohen, SH, Dole, H, Donahue, M, Georgiev, I, Jansen, RA, Limousin, M, Livermore, R, Norman, D, Rabien, S & Windhorst, R 2019, 'PLCK G165.7+67.0: Analysis of a Massive Lensing Cluster in a Hubble Space Telescope Census of Submillimeter Giant Arcs Selected Using Planck/Herschel', Astrophysical Journal, vol. 871, no. 1, 51. https://doi.org/10.3847/1538-4357/aaeff7
Frye, Brenda L. ; Pascale, Massimo ; Qin, Yujing ; Zitrin, Adi ; Diego, José ; Walth, Greg ; Yan, Haojing ; Conselice, Christopher J. ; Alpaslan, Mehmet ; Bauer, Adam ; Busoni, Lorenzo ; Coe, Dan ; Cohen, Seth H. ; Dole, Hervé ; Donahue, Megan ; Georgiev, Iskren ; Jansen, Rolf A. ; Limousin, Marceau ; Livermore, Rachael ; Norman, Dara ; Rabien, Sebastian ; Windhorst, Rogier. / PLCK G165.7+67.0 : Analysis of a Massive Lensing Cluster in a Hubble Space Telescope Census of Submillimeter Giant Arcs Selected Using Planck/Herschel. In: Astrophysical Journal. 2019 ; Vol. 871, No. 1.
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abstract = "We present Hubble Space Telescope WFC3-IR imaging in the fields of six apparently bright dusty star-forming galaxies (DSFGs) at z = 2-4 identified by their rest-frame far-infrared colors using the Planck and Herschel space facilities. We detect near-infrared counterparts for all six submillimeter sources, allowing us to undertake strong-lensing analyses. One field in particular stands out for its prominent giant arcs, PLCK G165.7+67.0 (G165). After combining the color and morphological information, we identify 11 sets of image multiplicities in this one field. We construct a strong-lensing model constrained by this lensing evidence, which uncovers a bimodal spatial mass distribution, and from which we measure a mass of (2.6 ±0.11) ×10 14 M o within ∼250 kpc. The bright (S 350 ≈ 750 mJy) DSFG appears as two images: a giant arc with a spatial extent of that is merging with the critical curve, and a lower-magnification counterimage that is detected in our new longer-wavelength ground- and space-based imaging data. Using our ground-based spectroscopy, we calculate a dynamical mass of M o to the same fixed radius, although this value may be inflated relative to the true value if the velocity distribution is enhanced in the line-of-sight direction. We suggest that the bimodal mass taken in combination with the weak X-ray flux and low SZ decrement may be explained as a pre-merger for which the intracluster gas is diluted along the line of sight, while the integrated surface mass density is supercritical to strong-lensing effects.",
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T2 - Analysis of a Massive Lensing Cluster in a Hubble Space Telescope Census of Submillimeter Giant Arcs Selected Using Planck/Herschel

AU - Frye, Brenda L.

AU - Pascale, Massimo

AU - Qin, Yujing

AU - Zitrin, Adi

AU - Diego, José

AU - Walth, Greg

AU - Yan, Haojing

AU - Conselice, Christopher J.

AU - Alpaslan, Mehmet

AU - Bauer, Adam

AU - Busoni, Lorenzo

AU - Coe, Dan

AU - Cohen, Seth H.

AU - Dole, Hervé

AU - Donahue, Megan

AU - Georgiev, Iskren

AU - Jansen, Rolf A.

AU - Limousin, Marceau

AU - Livermore, Rachael

AU - Norman, Dara

AU - Rabien, Sebastian

AU - Windhorst, Rogier

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N2 - We present Hubble Space Telescope WFC3-IR imaging in the fields of six apparently bright dusty star-forming galaxies (DSFGs) at z = 2-4 identified by their rest-frame far-infrared colors using the Planck and Herschel space facilities. We detect near-infrared counterparts for all six submillimeter sources, allowing us to undertake strong-lensing analyses. One field in particular stands out for its prominent giant arcs, PLCK G165.7+67.0 (G165). After combining the color and morphological information, we identify 11 sets of image multiplicities in this one field. We construct a strong-lensing model constrained by this lensing evidence, which uncovers a bimodal spatial mass distribution, and from which we measure a mass of (2.6 ±0.11) ×10 14 M o within ∼250 kpc. The bright (S 350 ≈ 750 mJy) DSFG appears as two images: a giant arc with a spatial extent of that is merging with the critical curve, and a lower-magnification counterimage that is detected in our new longer-wavelength ground- and space-based imaging data. Using our ground-based spectroscopy, we calculate a dynamical mass of M o to the same fixed radius, although this value may be inflated relative to the true value if the velocity distribution is enhanced in the line-of-sight direction. We suggest that the bimodal mass taken in combination with the weak X-ray flux and low SZ decrement may be explained as a pre-merger for which the intracluster gas is diluted along the line of sight, while the integrated surface mass density is supercritical to strong-lensing effects.

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KW - galaxies: clusters: general

KW - galaxies: fundamental parameters

KW - galaxies: high-redshift

KW - gravitational lensing: strong

KW - submillimeter: galaxies

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