H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723

D. Sluse; C. E. Rusu; C. D. Fassnacht; A. Sonnenfeld; J. Richard; M. W. Auger; L. Coccato; K. C. Wong; S. H. Suyu; T. Treu; A. Agnello; S. Birrer; V. Bonvin; T. Collett; F. Courbin; S. Hilbert; L. V. E. Koopmans; O. Tihhanova; P. J. Marshall; G. Meylan; A. J. Shajib; J. Annis; S. Avila; E. Bertin; D. Brooks; E. Buckley-Geer; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; L. N. da Costa; J. De Vicente; S. Desai; P. Doel; A. E. Evrard; B. Flaugher; J. Frieman; J. García-Bellido; D. W. Gerdes; D. A. Goldstein; R. A. Gruendl; J. Gschwend; W. G. Hartley; D. L. Hollowood; K. Honscheid; D. J. James; A. G. Kim; E. Krause; K. Kuehn; N. Kuropatkin; M. Lima; H. Lin; M. A. G. Maia; J. L. Marshall; P. Melchior; F. Menanteau; R. Miquel; A. A. Plazas; E. Sanchez; S. Serrano; I. Sevilla-Noarbe; M. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle

doi:10.1093/mnras/stz2483

H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723

D. Sluse, C. E. Rusu, C. D. Fassnacht, A. Sonnenfeld, J. Richard, M. W. Auger, L. Coccato, K. C. Wong, S. H. Suyu, T. Treu, A. Agnello, S. Birrer, V. Bonvin, T. Collett, F. Courbin, S. Hilbert, L. V. E. Koopmans, O. Tihhanova, P. J. Marshall, G. MeylanA. J. Shajib, J. Annis, S. Avila, E. Bertin, D. Brooks, E. Buckley-Geer, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, L. N. da Costa, J. De Vicente, S. Desai, P. Doel, A. E. Evrard, B. Flaugher, J. Frieman, J. García-Bellido, D. W. Gerdes, D. A. Goldstein, R. A. Gruendl, J. Gschwend, W. G. Hartley, D. L. Hollowood, K. Honscheid, D. J. James, A. G. Kim, E. Krause, K. Kuehn, N. Kuropatkin, M. Lima, H. Lin, M. A. G. Maia, J. L. Marshall, P. Melchior, F. Menanteau, R. Miquel, A. A. Plazas, E. Sanchez, S. Serrano, I. Sevilla-Noarbe, M. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E. C. Swanson, G. Tarle

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Abstract

Galaxies and galaxy groups located along the line of sight towards gravitationally lensed quasars produce high-order perturbations of the gravitational potential at the lens position. When these perturbation are too large, they can induce a systematic error on H₀ of a few per cent if the lens system is used for cosmological inference and the perturbers are not explicitly accounted for in the lens model. In this work, we present a detailed characterization of the environment of the lens system WFI 2033−4723 (⁠zsrc=zsrc=1.662, zlens=zlens=0.6575), one of the core targets of the H0LiCOW project for which we present cosmological inferences in a companion paper. We use the Gemini and ESO-Very Large telescopes to measure the spectroscopic redshifts of the brightest galaxies towards the lens, and use the ESO-MUSE integral field spectrograph to measure the velocity-dispersion of the lens (⁠σlos=250+15−21σlos=250−21+15 km s−1) and of several nearby galaxies. In addition, we measure photometric redshifts and stellar masses of all galaxies down to i < 23 mag, mainly based on Dark Energy Survey imaging (DR1). Our new catalogue, complemented with literature data, more than doubles the number of known galaxy spectroscopic redshifts in the direct vicinity of the lens, expanding to 116 (64) the number of spectroscopic redshifts for galaxies separated by less than 3 arcmin (2 arcmin ) from the lens. Using the flexion-shift as a measure of the amplitude of the gravitational perturbation, we identify two galaxy groups and three galaxies that require specific attention in the lens models. The ESO MUSE data enable us to measure the velocity-dispersions of three of these galaxies. These results are essential for the cosmological inference analysis presented in Rusu et al.

Original language	English
Pages (from-to)	613-633
Number of pages	21
Journal	Monthly Notices of the Royal Astronomical Society
Volume	490
Issue number	1
Early online date	5 Sep 2019
DOIs	https://doi.org/10.1093/mnras/stz2483
Publication status	Published - 1 Nov 2019

Keywords

astro-ph.GA
RCUK
STFC

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10.1093/mnras/stz2483

H0LiCOW – X
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2019 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Data availability statement for 'H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723'.
Collett, T. (Creator), Oxford University Press, 5 Sep 2019
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Sluse, D., Rusu, C. E., Fassnacht, C. D., Sonnenfeld, A., Richard, J., Auger, M. W., Coccato, L., Wong, K. C., Suyu, S. H., Treu, T., Agnello, A., Birrer, S., Bonvin, V., Collett, T., Courbin, F., Hilbert, S., Koopmans, L. V. E., Tihhanova, O., Marshall, P. J., ... Tarle, G. (2019). H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723. Monthly Notices of the Royal Astronomical Society, 490(1), 613-633. https://doi.org/10.1093/mnras/stz2483

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title = "H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723",

abstract = "Galaxies and galaxy groups located along the line of sight towards gravitationally lensed quasars produce high-order perturbations of the gravitational potential at the lens position. When these perturbation are too large, they can induce a systematic error on H0 of a few per cent if the lens system is used for cosmological inference and the perturbers are not explicitly accounted for in the lens model. In this work, we present a detailed characterization of the environment of the lens system WFI 2033−4723 (⁠zsrc=zsrc=1.662, zlens=zlens=0.6575), one of the core targets of the H0LiCOW project for which we present cosmological inferences in a companion paper. We use the Gemini and ESO-Very Large telescopes to measure the spectroscopic redshifts of the brightest galaxies towards the lens, and use the ESO-MUSE integral field spectrograph to measure the velocity-dispersion of the lens (⁠σlos=250+15−21σlos=250−21+15 km s−1) and of several nearby galaxies. In addition, we measure photometric redshifts and stellar masses of all galaxies down to i < 23 mag, mainly based on Dark Energy Survey imaging (DR1). Our new catalogue, complemented with literature data, more than doubles the number of known galaxy spectroscopic redshifts in the direct vicinity of the lens, expanding to 116 (64) the number of spectroscopic redshifts for galaxies separated by less than 3 arcmin (2 arcmin ) from the lens. Using the flexion-shift as a measure of the amplitude of the gravitational perturbation, we identify two galaxy groups and three galaxies that require specific attention in the lens models. The ESO MUSE data enable us to measure the velocity-dispersions of three of these galaxies. These results are essential for the cosmological inference analysis presented in Rusu et al.",

keywords = "astro-ph.GA, RCUK, STFC",

author = "D. Sluse and Rusu, {C. E.} and Fassnacht, {C. D.} and A. Sonnenfeld and J. Richard and Auger, {M. W.} and L. Coccato and Wong, {K. C.} and Suyu, {S. H.} and T. Treu and A. Agnello and S. Birrer and V. Bonvin and T. Collett and F. Courbin and S. Hilbert and Koopmans, {L. V. E.} and O. Tihhanova and Marshall, {P. J.} and G. Meylan and Shajib, {A. J.} and J. Annis and S. Avila and E. Bertin and D. Brooks and E. Buckley-Geer and Burke, {D. L.} and Rosell, {A. Carnero} and Kind, {M. Carrasco} and J. Carretero and Castander, {F. J.} and Costa, {L. N. da} and Vicente, {J. De} and S. Desai and P. Doel and Evrard, {A. E.} and B. Flaugher and J. Frieman and J. Garc{\'i}a-Bellido and Gerdes, {D. W.} and Goldstein, {D. A.} and Gruendl, {R. A.} and J. Gschwend and Hartley, {W. G.} and Hollowood, {D. L.} and K. Honscheid and James, {D. J.} and Kim, {A. G.} and E. Krause and K. Kuehn and N. Kuropatkin and M. Lima and H. Lin and Maia, {M. A. G.} and Marshall, {J. L.} and P. Melchior and F. Menanteau and R. Miquel and Plazas, {A. A.} and E. Sanchez and S. Serrano and I. Sevilla-Noarbe and M. Smith and M. Soares-Santos and F. Sobreira and E. Suchyta and Swanson, {M. E. C.} and G. Tarle",

note = "Note that this paper previously appeared as H0LICOW XI",

year = "2019",

month = nov,

day = "1",

doi = "10.1093/mnras/stz2483",

language = "English",

volume = "490",

pages = "613--633",

journal = "MNRAS",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

Sluse, D, Rusu, CE, Fassnacht, CD, Sonnenfeld, A, Richard, J, Auger, MW, Coccato, L, Wong, KC, Suyu, SH, Treu, T, Agnello, A, Birrer, S, Bonvin, V, Collett, T, Courbin, F, Hilbert, S, Koopmans, LVE, Tihhanova, O, Marshall, PJ, Meylan, G, Shajib, AJ, Annis, J, Avila, S, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, DL, Rosell, AC, Kind, MC, Carretero, J, Castander, FJ, Costa, LND, Vicente, JD, Desai, S, Doel, P, Evrard, AE, Flaugher, B, Frieman, J, García-Bellido, J, Gerdes, DW, Goldstein, DA, Gruendl, RA, Gschwend, J, Hartley, WG, Hollowood, DL, Honscheid, K, James, DJ, Kim, AG, Krause, E, Kuehn, K, Kuropatkin, N, Lima, M, Lin, H, Maia, MAG, Marshall, JL, Melchior, P, Menanteau, F, Miquel, R, Plazas, AA, Sanchez, E, Serrano, S, Sevilla-Noarbe, I, Smith, M, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC & Tarle, G 2019, 'H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723', Monthly Notices of the Royal Astronomical Society, vol. 490, no. 1, pp. 613-633. https://doi.org/10.1093/mnras/stz2483

TY - JOUR

T1 - H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723

AU - Sluse, D.

AU - Rusu, C. E.

AU - Fassnacht, C. D.

AU - Sonnenfeld, A.

AU - Richard, J.

AU - Auger, M. W.

AU - Coccato, L.

AU - Wong, K. C.

AU - Suyu, S. H.

AU - Treu, T.

AU - Agnello, A.

AU - Birrer, S.

AU - Bonvin, V.

AU - Collett, T.

AU - Courbin, F.

AU - Hilbert, S.

AU - Koopmans, L. V. E.

AU - Tihhanova, O.

AU - Marshall, P. J.

AU - Meylan, G.

AU - Shajib, A. J.

AU - Annis, J.

AU - Avila, S.

AU - Bertin, E.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Rosell, A. Carnero

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Castander, F. J.

AU - Costa, L. N. da

AU - Vicente, J. De

AU - Desai, S.

AU - Doel, P.

AU - Evrard, A. E.

AU - Flaugher, B.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gerdes, D. W.

AU - Goldstein, D. A.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Hartley, W. G.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - James, D. J.

AU - Kim, A. G.

AU - Krause, E.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lima, M.

AU - Lin, H.

AU - Maia, M. A. G.

AU - Marshall, J. L.

AU - Melchior, P.

AU - Menanteau, F.

AU - Miquel, R.

AU - Plazas, A. A.

AU - Sanchez, E.

AU - Serrano, S.

AU - Sevilla-Noarbe, I.

AU - Smith, M.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E. C.

AU - Tarle, G.

N1 - Note that this paper previously appeared as H0LICOW XI

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Galaxies and galaxy groups located along the line of sight towards gravitationally lensed quasars produce high-order perturbations of the gravitational potential at the lens position. When these perturbation are too large, they can induce a systematic error on H0 of a few per cent if the lens system is used for cosmological inference and the perturbers are not explicitly accounted for in the lens model. In this work, we present a detailed characterization of the environment of the lens system WFI 2033−4723 (⁠zsrc=zsrc=1.662, zlens=zlens=0.6575), one of the core targets of the H0LiCOW project for which we present cosmological inferences in a companion paper. We use the Gemini and ESO-Very Large telescopes to measure the spectroscopic redshifts of the brightest galaxies towards the lens, and use the ESO-MUSE integral field spectrograph to measure the velocity-dispersion of the lens (⁠σlos=250+15−21σlos=250−21+15 km s−1) and of several nearby galaxies. In addition, we measure photometric redshifts and stellar masses of all galaxies down to i < 23 mag, mainly based on Dark Energy Survey imaging (DR1). Our new catalogue, complemented with literature data, more than doubles the number of known galaxy spectroscopic redshifts in the direct vicinity of the lens, expanding to 116 (64) the number of spectroscopic redshifts for galaxies separated by less than 3 arcmin (2 arcmin ) from the lens. Using the flexion-shift as a measure of the amplitude of the gravitational perturbation, we identify two galaxy groups and three galaxies that require specific attention in the lens models. The ESO MUSE data enable us to measure the velocity-dispersions of three of these galaxies. These results are essential for the cosmological inference analysis presented in Rusu et al.

AB - Galaxies and galaxy groups located along the line of sight towards gravitationally lensed quasars produce high-order perturbations of the gravitational potential at the lens position. When these perturbation are too large, they can induce a systematic error on H0 of a few per cent if the lens system is used for cosmological inference and the perturbers are not explicitly accounted for in the lens model. In this work, we present a detailed characterization of the environment of the lens system WFI 2033−4723 (⁠zsrc=zsrc=1.662, zlens=zlens=0.6575), one of the core targets of the H0LiCOW project for which we present cosmological inferences in a companion paper. We use the Gemini and ESO-Very Large telescopes to measure the spectroscopic redshifts of the brightest galaxies towards the lens, and use the ESO-MUSE integral field spectrograph to measure the velocity-dispersion of the lens (⁠σlos=250+15−21σlos=250−21+15 km s−1) and of several nearby galaxies. In addition, we measure photometric redshifts and stellar masses of all galaxies down to i < 23 mag, mainly based on Dark Energy Survey imaging (DR1). Our new catalogue, complemented with literature data, more than doubles the number of known galaxy spectroscopic redshifts in the direct vicinity of the lens, expanding to 116 (64) the number of spectroscopic redshifts for galaxies separated by less than 3 arcmin (2 arcmin ) from the lens. Using the flexion-shift as a measure of the amplitude of the gravitational perturbation, we identify two galaxy groups and three galaxies that require specific attention in the lens models. The ESO MUSE data enable us to measure the velocity-dispersions of three of these galaxies. These results are essential for the cosmological inference analysis presented in Rusu et al.

KW - astro-ph.GA

KW - RCUK

KW - STFC

U2 - 10.1093/mnras/stz2483

DO - 10.1093/mnras/stz2483

M3 - Article

VL - 490

SP - 613

EP - 633

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 1

ER -

H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723

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Data availability statement for 'H0LiCOW – X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033−4723'.

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