STRIDES: Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008

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STRIDES : Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008. / Buckley-Geer, E. J.; Lin, H.; Rusu, C. E.; Poh, J.; Palmese, A.; Agnello, A.; Christensen, L.; Frieman, J.; Shajib, A. J.; Treu, T.; Collett, T.; Birrer, S.; Anguita, T.; Fassnacht, C. D.; Meylan, G.; Mukherjee, S.; Wong, K. C.; Aguena, M.; Allam, S.; Avila, S.; Bertin, E.; Bhargava, S.; Brooks, D.; Rosell, A. Carnero; Kind, M. Carrasco; Carretero, J.; Castander, F. J.; Costanzi, M.; da Costa, L. N.; De Vicente, J.; Desai, S.; Diehl, H. T.; Doel, P.; Eifler, T. F.; Everett, S.; Flaugher, B.; Fosalba, P.; Garcia-Bellido, J.; Gaztanaga, E.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Hinton, S. R.; Honscheid, K.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Maia, M. A. G.; Marshall, J. L.; DES Collaboration.

I: Monthly Notices of the Royal Astronomical Society, Bind 498, Nr. 3, 29.08.2020, s. 3241-3274.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Buckley-Geer, EJ, Lin, H, Rusu, CE, Poh, J, Palmese, A, Agnello, A, Christensen, L, Frieman, J, Shajib, AJ, Treu, T, Collett, T, Birrer, S, Anguita, T, Fassnacht, CD, Meylan, G, Mukherjee, S, Wong, KC, Aguena, M, Allam, S, Avila, S, Bertin, E, Bhargava, S, Brooks, D, Rosell, AC, Kind, MC, Carretero, J, Castander, FJ, Costanzi, M, da Costa, LN, De Vicente, J, Desai, S, Diehl, HT, Doel, P, Eifler, TF, Everett, S, Flaugher, B, Fosalba, P, Garcia-Bellido, J, Gaztanaga, E, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hinton, SR, Honscheid, K, James, DJ, Kuehn, K, Kuropatkin, N, Maia, MAG, Marshall, JL & DES Collaboration 2020, 'STRIDES: Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008', Monthly Notices of the Royal Astronomical Society, bind 498, nr. 3, s. 3241-3274. https://doi.org/10.1093/mnras/staa2563

APA

Buckley-Geer, E. J., Lin, H., Rusu, C. E., Poh, J., Palmese, A., Agnello, A., Christensen, L., Frieman, J., Shajib, A. J., Treu, T., Collett, T., Birrer, S., Anguita, T., Fassnacht, C. D., Meylan, G., Mukherjee, S., Wong, K. C., Aguena, M., Allam, S., ... DES Collaboration (2020). STRIDES: Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008. Monthly Notices of the Royal Astronomical Society, 498(3), 3241-3274. https://doi.org/10.1093/mnras/staa2563

Vancouver

Buckley-Geer EJ, Lin H, Rusu CE, Poh J, Palmese A, Agnello A o.a. STRIDES: Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008. Monthly Notices of the Royal Astronomical Society. 2020 aug. 29;498(3):3241-3274. https://doi.org/10.1093/mnras/staa2563

Author

Buckley-Geer, E. J. ; Lin, H. ; Rusu, C. E. ; Poh, J. ; Palmese, A. ; Agnello, A. ; Christensen, L. ; Frieman, J. ; Shajib, A. J. ; Treu, T. ; Collett, T. ; Birrer, S. ; Anguita, T. ; Fassnacht, C. D. ; Meylan, G. ; Mukherjee, S. ; Wong, K. C. ; Aguena, M. ; Allam, S. ; Avila, S. ; Bertin, E. ; Bhargava, S. ; Brooks, D. ; Rosell, A. Carnero ; Kind, M. Carrasco ; Carretero, J. ; Castander, F. J. ; Costanzi, M. ; da Costa, L. N. ; De Vicente, J. ; Desai, S. ; Diehl, H. T. ; Doel, P. ; Eifler, T. F. ; Everett, S. ; Flaugher, B. ; Fosalba, P. ; Garcia-Bellido, J. ; Gaztanaga, E. ; Gruen, D. ; Gruendl, R. A. ; Gschwend, J. ; Gutierrez, G. ; Hinton, S. R. ; Honscheid, K. ; James, D. J. ; Kuehn, K. ; Kuropatkin, N. ; Maia, M. A. G. ; Marshall, J. L. ; DES Collaboration. / STRIDES : Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008. I: Monthly Notices of the Royal Astronomical Society. 2020 ; Bind 498, Nr. 3. s. 3241-3274.

Bibtex

@article{0d916ec0480b4c00aa835a2f713ccdbd,
title = "STRIDES: Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008",
abstract = "In time-delay cosmography, three of the key ingredients are (1) determining the velocity dispersion of the lensing galaxy, (2) identifying galaxies and groups along the line of sight with sufficient proximity and mass to be included in the mass model, and (3) estimating the external convergence kappa(ext) from less massive structures that are not included in the mass model. We present results on all three of these ingredients for two time-delay lensed quad quasar systems, DES J0408-5354 and WGD 2038-4008. We use the Gemini, Magellan, and VLT telescopes to obtain spectra to both measure the stellar velocity dispersions of the main lensing galaxies and to identify the line-of-sight galaxies in these systems. Next, we identify 10 groups in DES J0408-5354 and two groups in WGD 2038-4008 using a group-finding algorithm. We then identify the most significant galaxy and galaxy-group perturbers using the 'flexion shift' criterion. We determine the probability distribution function of the external convergence kappa(ext) for both of these systems based on our spectroscopy and on the DES-only multiband wide-field observations. Using weighted galaxy counts, calibrated based on the Millennium Simulation, we find that DES J0408-5354 is located in a significantly underdense environment, leading to a tight (width similar to 3 per cent), negative-value kappa(ext) distribution. On the other hand, WGD 2038-4008 is located in an environment of close to unit density, and its low source redshift results in a much tighter kappa(ext) of similar to 1 per cent, as long as no external shear constraints are imposed.",
keywords = "gravitational lensing: strong, galaxies: groups: general, quasars: individual: DES J0408-5354, WGD 2038-4008, STELLAR POPULATION SYNTHESIS, GALAXY-GROUP IDENTIFICATION, ANGULAR MASKS, EVOLUTION, I., RESOLUTION, REDSHIFTS, CLUSTERS, H-0",
author = "Buckley-Geer, {E. J.} and H. Lin and Rusu, {C. E.} and J. Poh and A. Palmese and A. Agnello and L. Christensen and J. Frieman and Shajib, {A. J.} and T. Treu and T. Collett and S. Birrer and T. Anguita and Fassnacht, {C. D.} and G. Meylan and S. Mukherjee and Wong, {K. C.} and M. Aguena and S. Allam and S. Avila and E. Bertin and S. Bhargava and D. Brooks and Rosell, {A. Carnero} and Kind, {M. Carrasco} and J. Carretero and Castander, {F. J.} and M. Costanzi and {da Costa}, {L. N.} and {De Vicente}, J. and S. Desai and Diehl, {H. T.} and P. Doel and Eifler, {T. F.} and S. Everett and B. Flaugher and P. Fosalba and J. Garcia-Bellido and E. Gaztanaga and D. Gruen and Gruendl, {R. A.} and J. Gschwend and G. Gutierrez and Hinton, {S. R.} and K. Honscheid and James, {D. J.} and K. Kuehn and N. Kuropatkin and Maia, {M. A. G.} and Marshall, {J. L.} and {DES Collaboration}",
year = "2020",
month = aug,
day = "29",
doi = "10.1093/mnras/staa2563",
language = "English",
volume = "498",
pages = "3241--3274",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "3",

}

RIS

TY - JOUR

T1 - STRIDES

T2 - Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-4008

AU - Buckley-Geer, E. J.

AU - Lin, H.

AU - Rusu, C. E.

AU - Poh, J.

AU - Palmese, A.

AU - Agnello, A.

AU - Christensen, L.

AU - Frieman, J.

AU - Shajib, A. J.

AU - Treu, T.

AU - Collett, T.

AU - Birrer, S.

AU - Anguita, T.

AU - Fassnacht, C. D.

AU - Meylan, G.

AU - Mukherjee, S.

AU - Wong, K. C.

AU - Aguena, M.

AU - Allam, S.

AU - Avila, S.

AU - Bertin, E.

AU - Bhargava, S.

AU - Brooks, D.

AU - Rosell, A. Carnero

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Castander, F. J.

AU - Costanzi, M.

AU - da Costa, L. N.

AU - De Vicente, J.

AU - Desai, S.

AU - Diehl, H. T.

AU - Doel, P.

AU - Eifler, T. F.

AU - Everett, S.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Garcia-Bellido, J.

AU - Gaztanaga, E.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Hinton, S. R.

AU - Honscheid, K.

AU - James, D. J.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Maia, M. A. G.

AU - Marshall, J. L.

AU - DES Collaboration

PY - 2020/8/29

Y1 - 2020/8/29

N2 - In time-delay cosmography, three of the key ingredients are (1) determining the velocity dispersion of the lensing galaxy, (2) identifying galaxies and groups along the line of sight with sufficient proximity and mass to be included in the mass model, and (3) estimating the external convergence kappa(ext) from less massive structures that are not included in the mass model. We present results on all three of these ingredients for two time-delay lensed quad quasar systems, DES J0408-5354 and WGD 2038-4008. We use the Gemini, Magellan, and VLT telescopes to obtain spectra to both measure the stellar velocity dispersions of the main lensing galaxies and to identify the line-of-sight galaxies in these systems. Next, we identify 10 groups in DES J0408-5354 and two groups in WGD 2038-4008 using a group-finding algorithm. We then identify the most significant galaxy and galaxy-group perturbers using the 'flexion shift' criterion. We determine the probability distribution function of the external convergence kappa(ext) for both of these systems based on our spectroscopy and on the DES-only multiband wide-field observations. Using weighted galaxy counts, calibrated based on the Millennium Simulation, we find that DES J0408-5354 is located in a significantly underdense environment, leading to a tight (width similar to 3 per cent), negative-value kappa(ext) distribution. On the other hand, WGD 2038-4008 is located in an environment of close to unit density, and its low source redshift results in a much tighter kappa(ext) of similar to 1 per cent, as long as no external shear constraints are imposed.

AB - In time-delay cosmography, three of the key ingredients are (1) determining the velocity dispersion of the lensing galaxy, (2) identifying galaxies and groups along the line of sight with sufficient proximity and mass to be included in the mass model, and (3) estimating the external convergence kappa(ext) from less massive structures that are not included in the mass model. We present results on all three of these ingredients for two time-delay lensed quad quasar systems, DES J0408-5354 and WGD 2038-4008. We use the Gemini, Magellan, and VLT telescopes to obtain spectra to both measure the stellar velocity dispersions of the main lensing galaxies and to identify the line-of-sight galaxies in these systems. Next, we identify 10 groups in DES J0408-5354 and two groups in WGD 2038-4008 using a group-finding algorithm. We then identify the most significant galaxy and galaxy-group perturbers using the 'flexion shift' criterion. We determine the probability distribution function of the external convergence kappa(ext) for both of these systems based on our spectroscopy and on the DES-only multiband wide-field observations. Using weighted galaxy counts, calibrated based on the Millennium Simulation, we find that DES J0408-5354 is located in a significantly underdense environment, leading to a tight (width similar to 3 per cent), negative-value kappa(ext) distribution. On the other hand, WGD 2038-4008 is located in an environment of close to unit density, and its low source redshift results in a much tighter kappa(ext) of similar to 1 per cent, as long as no external shear constraints are imposed.

KW - gravitational lensing: strong

KW - galaxies: groups: general

KW - quasars: individual: DES J0408-5354, WGD 2038-4008

KW - STELLAR POPULATION SYNTHESIS

KW - GALAXY-GROUP IDENTIFICATION

KW - ANGULAR MASKS

KW - EVOLUTION

KW - I.

KW - RESOLUTION

KW - REDSHIFTS

KW - CLUSTERS

KW - H-0

U2 - 10.1093/mnras/staa2563

DO - 10.1093/mnras/staa2563

M3 - Journal article

VL - 498

SP - 3241

EP - 3274

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 3

ER -

ID: 252292544