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The mystery of photometric twins DES17X1boj and DES16E2bjy

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The mystery of photometric twins DES17X1boj and DES16E2bjy. / DES Collaboration ; Frohmaier, C.; D'Andrea, C. B.; Macaulay, E.; Swann, E.; Thomas, B. P.; Vincenzi, M.; Avila, S.

In: Monthly Notices of the Royal Astronomical Society, Vol. 494, No. 4, 01.06.2020, p. 5576–5589.

Research output: Contribution to journalArticlepeer-review

Harvard

DES Collaboration, Frohmaier, C, D'Andrea, CB, Macaulay, E, Swann, E, Thomas, BP, Vincenzi, M & Avila, S 2020, 'The mystery of photometric twins DES17X1boj and DES16E2bjy', Monthly Notices of the Royal Astronomical Society, vol. 494, no. 4, pp. 5576–5589. https://doi.org/10.1093/mnras/staa995

APA

DES Collaboration, Frohmaier, C., D'Andrea, C. B., Macaulay, E., Swann, E., Thomas, B. P., Vincenzi, M., & Avila, S. (2020). The mystery of photometric twins DES17X1boj and DES16E2bjy. Monthly Notices of the Royal Astronomical Society, 494(4), 5576–5589. https://doi.org/10.1093/mnras/staa995

Vancouver

DES Collaboration, Frohmaier C, D'Andrea CB, Macaulay E, Swann E, Thomas BP et al. The mystery of photometric twins DES17X1boj and DES16E2bjy. Monthly Notices of the Royal Astronomical Society. 2020 Jun 1;494(4):5576–5589. https://doi.org/10.1093/mnras/staa995

Author

DES Collaboration ; Frohmaier, C. ; D'Andrea, C. B. ; Macaulay, E. ; Swann, E. ; Thomas, B. P. ; Vincenzi, M. ; Avila, S. / The mystery of photometric twins DES17X1boj and DES16E2bjy. In: Monthly Notices of the Royal Astronomical Society. 2020 ; Vol. 494, No. 4. pp. 5576–5589.

Bibtex

@article{960ec53455274c8d80bb27eac3540908,
title = "The mystery of photometric twins DES17X1boj and DES16E2bjy",
abstract = "We present an analysis of DES17X1boj and DES16E2bjy, two peculiar transients discovered by the Dark Energy Survey (DES). They exhibit nearly identical double-peaked light curves that reach very different maximum luminosities (Mr = −15.4 and −17.9, respectively). The light-curve evolution of these events is highly atypical and has not been reported before. The transients are found in different host environments: DES17X1boj was found near the nucleus of a spiral galaxy, while DES16E2bjy is located in the outskirts of a passive red galaxy. Early photometric data are well fitted with a blackbody and the resulting moderate photospheric expansion velocities (1800  km s−1 for DES17X1boj and 4800  km s−1 for DES16E2bjy) suggest an explosive or eruptive origin. Additionally, a feature identified as high-velocity Ca II absorption (⁠v ≈ 9400 km s−1) in the near-peak spectrum of DES17X1boj may imply that it is a supernova. While similar light-curve evolution suggests a similar physical origin for these two transients, we are not able to identify or characterize the progenitors.",
keywords = "astro-ph.HE, RCUK, STFC, ST/R000506/1",
author = "{DES Collaboration} and M. Pursiainen and C. Gutierrez and P. Wiseman and M. Childress and C. Frohmaier and C. Angus and Segura, {N. Castro} and L. Kelsey and M. Sullivan and L. Galbany and P. Nugent and Bassett, {B. A.} and D. Brout and D. Carollo and D'Andrea, {C. B.} and Davis, {T. M.} and M. Grayling and Hinton, {S. R.} and C. Inserra and R. Kessler and C. Lidman and E. Macaulay and M. March and A. Mo{\"o}ller and T. M{\"u}ller and D. Scolnic and E. Swann and Thomas, {B. P.} and M. Vincenzi and Abbott, {T. M. C.} and S. Allam 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 Costa, {L. N. da} and Vicente, {J. De} and S. Desai and Diehl, {H. T.} and P. Doel and Eifler, {T. F.} and S. Everett and B. Flaugher and J. Frieman and J. Garc{\'i}a-Bellido and E. Gaztanaga",
note = "Submitted to MNRAS",
year = "2020",
month = jun,
day = "1",
doi = "10.1093/mnras/staa995",
language = "English",
volume = "494",
pages = "5576–5589",
journal = "MNRAS",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - The mystery of photometric twins DES17X1boj and DES16E2bjy

AU - DES Collaboration

AU - Pursiainen, M.

AU - Gutierrez, C.

AU - Wiseman, P.

AU - Childress, M.

AU - Frohmaier, C.

AU - Angus, C.

AU - Segura, N. Castro

AU - Kelsey, L.

AU - Sullivan, M.

AU - Galbany, L.

AU - Nugent, P.

AU - Bassett, B. A.

AU - Brout, D.

AU - Carollo, D.

AU - D'Andrea, C. B.

AU - Davis, T. M.

AU - Grayling, M.

AU - Hinton, S. R.

AU - Inserra, C.

AU - Kessler, R.

AU - Lidman, C.

AU - Macaulay, E.

AU - March, M.

AU - Moöller, A.

AU - Müller, T.

AU - Scolnic, D.

AU - Swann, E.

AU - Thomas, B. P.

AU - Vincenzi, M.

AU - Abbott, T. M. C.

AU - Allam, S.

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 - Costa, L. N. da

AU - Vicente, J. De

AU - Desai, S.

AU - Diehl, H. T.

AU - Doel, P.

AU - Eifler, T. F.

AU - Everett, S.

AU - Flaugher, B.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gaztanaga, E.

N1 - Submitted to MNRAS

PY - 2020/6/1

Y1 - 2020/6/1

N2 - We present an analysis of DES17X1boj and DES16E2bjy, two peculiar transients discovered by the Dark Energy Survey (DES). They exhibit nearly identical double-peaked light curves that reach very different maximum luminosities (Mr = −15.4 and −17.9, respectively). The light-curve evolution of these events is highly atypical and has not been reported before. The transients are found in different host environments: DES17X1boj was found near the nucleus of a spiral galaxy, while DES16E2bjy is located in the outskirts of a passive red galaxy. Early photometric data are well fitted with a blackbody and the resulting moderate photospheric expansion velocities (1800  km s−1 for DES17X1boj and 4800  km s−1 for DES16E2bjy) suggest an explosive or eruptive origin. Additionally, a feature identified as high-velocity Ca II absorption (⁠v ≈ 9400 km s−1) in the near-peak spectrum of DES17X1boj may imply that it is a supernova. While similar light-curve evolution suggests a similar physical origin for these two transients, we are not able to identify or characterize the progenitors.

AB - We present an analysis of DES17X1boj and DES16E2bjy, two peculiar transients discovered by the Dark Energy Survey (DES). They exhibit nearly identical double-peaked light curves that reach very different maximum luminosities (Mr = −15.4 and −17.9, respectively). The light-curve evolution of these events is highly atypical and has not been reported before. The transients are found in different host environments: DES17X1boj was found near the nucleus of a spiral galaxy, while DES16E2bjy is located in the outskirts of a passive red galaxy. Early photometric data are well fitted with a blackbody and the resulting moderate photospheric expansion velocities (1800  km s−1 for DES17X1boj and 4800  km s−1 for DES16E2bjy) suggest an explosive or eruptive origin. Additionally, a feature identified as high-velocity Ca II absorption (⁠v ≈ 9400 km s−1) in the near-peak spectrum of DES17X1boj may imply that it is a supernova. While similar light-curve evolution suggests a similar physical origin for these two transients, we are not able to identify or characterize the progenitors.

KW - astro-ph.HE

KW - RCUK

KW - STFC

KW - ST/R000506/1

U2 - 10.1093/mnras/staa995

DO - 10.1093/mnras/staa995

M3 - Article

VL - 494

SP - 5576

EP - 5589

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 4

ER -

ID: 16571456