References analysis of the Wikipedia article "Westerlund 1" in the English version

arxiv.org (Global: 69^th place; English: 59^th place)

Brandner, W.; Clark, J. S.; Stolte, A.; Waters, R.; Negueruela, I.; Goodwin, S. P.; et al. (2008). "Intermediate to low-mass stellar content of Westerlund 1". Astronomy & Astrophysics. 478 (1): 137–149. arXiv:0711.1624. Bibcode:2008A&A...478..137B. doi:10.1051/0004-6361:20077579. S2CID 15778583.

Parker, Richard J.; Crowther, Paul A.; Rate, Gemma (2020). "Unlocking Galactic Wolf–Rayet stars with Gaia DR2 – II. Cluster and association membership". Monthly Notices of the Royal Astronomical Society. 495: 1209–1226. arXiv:2005.02533. doi:10.1093/mnras/staa1290. S2CID 218516882.

Aghakhanloo, Mojgan; Murphy, Jeremiah W.; Smith, Nathan; Parejko, John; Díaz-Rodríguez, Mariangelly; Drout, Maria R.; Groh, Jose H.; Guzman, Joseph; Stassun, Keivan G. (2020-02-21). "Inferring the parallax of Westerlund 1 from Gaia DR2". Monthly Notices of the Royal Astronomical Society. 492 (2): 2497–2509. arXiv:1901.06582. Bibcode:2020MNRAS.492.2497A. doi:10.1093/mnras/stz3628. ISSN 0035-8711. S2CID 119465620.

Negueruela, I.; Alfaro, E. J.; Dorda, R.; Marco, A.; Maíz Apellániz, J.; González-Fernández, C. (2022). "Westerlund 1 under the light of Gaia EDR3: Distance, isolation, extent, and a hidden population". Astronomy & Astrophysics. 664: A146. arXiv:2204.00422. Bibcode:2022A&A...664A.146N. doi:10.1051/0004-6361/202142985. S2CID 247922758.

Portegies Zwart, Simon F.; McMillan, Stephen L.W.; Gieles, Mark (2010). "Young Massive Star Clusters". Annual Review of Astronomy and Astrophysics. 48: 431–493. arXiv:1002.1961. Bibcode:2010ARA&A..48..431P. doi:10.1146/annurev-astro-081309-130834. S2CID 119207843.

Gallagher & Grebel (2002). "Extragalactic Star Clusters: Speculations on the Future". Extragalactic Star Clusters, IAU Symposium. 207: 207. arXiv:astro-ph/0109052. Bibcode:2002IAUS..207..745G.

Clark, J. S.; Negueruela, I.; Crowther, P. A.; Goodwin, S. P.; et al. (2005). "On the massive stellar population of the super star cluster Westerlund 1". Astronomy & Astrophysics. 434 (3): 949–969. arXiv:astro-ph/0504342. Bibcode:2005A&A...434..949C. doi:10.1051/0004-6361:20042413. S2CID 119042919.

Muno, Michael P.; Clark, J. Simon; Crowther, Paul A.; Dougherty, Sean M.; De Grijs, Richard; Law, Casey; McMillan, Stephen L. W.; Morris, Mark R.; Negueruela, Ignacio; Pooley, David; Portegies Zwart, Simon; Yusef-Zadeh, Farhad; et al. (2006). "A Neutron Star with a Massive Progenitor in Westerlund 1". Astrophysical Journal Letters. 636 (1): L41. arXiv:astro-ph/0509408. Bibcode:2006ApJ...636L..41M. doi:10.1086/499776. S2CID 10349450.

Crowther, Paul A.; Hadfield, L. J.; Clark, J. S.; Negueruela, I.; Vacca, W. D.; et al. (2006). "A census of the Wolf–Rayet content in Westerlund 1 from near-infrared imaging and spectroscopy". Monthly Notices of the Royal Astronomical Society. 372 (3): 1407–1424. arXiv:astro-ph/0608356. Bibcode:2006MNRAS.372.1407C. doi:10.1111/j.1365-2966.2006.10952.x. S2CID 10505573.

Negueruela, Ignacio; Clark, J. Simon; Hadfield, Lucy J.; Crowther, Paul A.; et al. (2007). "Westerlund 1 as a Template for Massive Star Evolution". Proceedings of the International Astronomical Union. 3: 301–306. arXiv:0802.4168. Bibcode:2008IAUS..250..301N. doi:10.1017/S1743921308020620. S2CID 10747013.

Bonanos, Alceste Z. (2007). "Variability of Young Massive Stars in the Galactic Super Star Cluster Westerlund 1". Astronomical Journal. 133 (6): 2696–2708. arXiv:astro-ph/0702614. Bibcode:2007AJ....133.2696B. doi:10.1086/518093. S2CID 119074868.

Ritchie, B. W.; Clark, J. S.; Negueruela, I.; Crowther, P. A.; et al. (2009). "A VLT/FLAMES survey for massive binaries in Westerlund 1: I. first observations of luminous evolved stars". Astronomy and Astrophysics. 507 (3): 1585. arXiv:0909.3815. Bibcode:2009A&A...507.1585R. doi:10.1051/0004-6361/200912686. S2CID 197460709.

Gvaramadze, V. V. (2018). "MN44: A Luminous Blue Variable Running Away from Westerlund 1". Research Notes of the AAS. 2 (4): 214. arXiv:1811.07899. Bibcode:2018RNAAS...2..214G. doi:10.3847/2515-5172/aaf23d. S2CID 119237114.

Negueruela, Ignacio; Clark, J. Simon; Ritchie, Ben W. (2010). "The population of OB supergiants in the starburst cluster Westerlund 1". Astronomy and Astrophysics. 516 (78): A78. arXiv:1003.5204. Bibcode:2010A&A...516A..78N. doi:10.1051/0004-6361/201014032. S2CID 230718.

Anastasopoulou, K.; Guarcello, M. G.; Drake, J. J.; Ritchie, B.; De Becker, M.; Bayo, A.; Najarro, F.; Negueruela, I.; Sciortino, S.; Flaccomio, E.; Castellanos, R.; Albacete-Colombo, J. F.; Andersen, M.; Damiani, F.; Fraschetti, F.; Gennaro, M.; Gunderson, S. J.; Larkin, C. J. K.; Mackey, J.; Moffat, A. F. J.; Pradhan, P.; Saracino, S.; Stevens, I. R.; Weigelt, G. (2025). "EWOCS-IV: 1Ms ACIS Chandra observation of the supergiant B[e] star Wd1-9". arXiv:2507.17816 [astro-ph.HE].

Negueruela, I.; Clark, J. S.; Ritchie, B. W. (2010). "The population of OB supergiants in the starburst cluster Westerlund 1". Astronomy & Astrophysics. 516: 3. arXiv:1003.5204. Bibcode:2010A&A...516A..78N. doi:10.1051/0004-6361/201014032. S2CID 230718.

Fok, Thomas K. T.; Nakashima, Jun-Ichi; Yung, Bosco H. K.; Hsia, Chih-Hao; Deguchi, Shuji (2012). "Maser Observations of Westerlund 1 and Comprehensive Considerations on Maser Properties of Red Supergiants Associated with Massive Clusters". The Astrophysical Journal. 760 (1): 65. arXiv:1209.6427. Bibcode:2012ApJ...760...65F. doi:10.1088/0004-637X/760/1/65. S2CID 53393926.

Clark, J. S.; Ritchie, B. W.; Negueruela, I.; Crowther, P. A.; Damineli, A.; Jablonski, F. J.; Langer, N. (2011). "A VLT/FLAMES survey for massive binaries in Westerlund 1" (PDF). Astronomy & Astrophysics. 531: A28. arXiv:1105.0776. Bibcode:2011A&A...531A..28C. doi:10.1051/0004-6361/201116990. S2CID 119299122.

Wright, N. J.; Wesson, R.; Drew, J. E.; Barentsen, G.; Barlow, M. J.; Walsh, J. R.; Zijlstra, A.; Drake, J. J.; Eisloffel, J.; Farnhill, H. J. (16 October 2013). "The ionized nebula surrounding the red supergiant W26 in Westerlund 1". Monthly Notices of the Royal Astronomical Society: Letters. 437 (1): L1 – L5. arXiv:1309.4086. Bibcode:2014MNRAS.437L...1W. doi:10.1093/mnrasl/slt127. S2CID 14889377.

MacKey, Jonathan; Castro, Norberto; Fossati, Luca; Langer, Norbert (2015). "Cold gas in hot star clusters: The wind from the red supergiant W26 in Westerlund 1". Astronomy & Astrophysics. 582: A24. arXiv:1508.07003. Bibcode:2015A&A...582A..24M. doi:10.1051/0004-6361/201526159. S2CID 54683876.

Rocha, Danilo F.; Almeida, Leonardo A.; Damineli, Augusto; Navarete, Felipe; Abdul-Masih, Michael; Mace, Gregory N. (2022). "Distance and age of the massive stellar cluster Westerlund 1 – II. The eclipsing binary W36". Monthly Notices of the Royal Astronomical Society. 517 (3): 3749–3762. arXiv:2210.04985. Bibcode:2022MNRAS.517.3749R. doi:10.1093/mnras/stac2927.

Clark, J. S; Ritchie, B. W; Negueruela, I (2010). "A serendipitous survey for variability amongst the massive stellar population of Westerlund 1". Astronomy and Astrophysics. 514: A87. arXiv:1003.5107. Bibcode:2010A&A...514A..87C. doi:10.1051/0004-6361/200913820. S2CID 14780809.

Negueruela, I.; Clark, J. S. (2005). "Further Wolf–Rayet stars in the starburst cluster Westerlund 1". Astronomy & Astrophysics. 436 (2): 541. arXiv:astro-ph/0503303. Bibcode:2005A&A...436..541N. doi:10.1051/0004-6361:20052699. S2CID 1755956.

Crowther, Paul A.; Hadfield, L. J.; Clark, J. S.; Negueruela, I.; Vacca, W. D. (2006-09-29). "A census of the Wolf–Rayet content in Westerlund 1 from near-infrared imaging and spectroscopy". Monthly Notices of the Royal Astronomical Society. 372 (3): 1411. arXiv:astro-ph/0608356. Bibcode:2006MNRAS.372.1407C. doi:10.1111/j.1365-2966.2006.10952.x. S2CID 10505573.

Koumpia, E.; Bonanos, A. Z. (2012). "The Fundamental Parameters of Four Massive Eclipsing Binaries in Westerlund 1". Astronomy & Astrophysics. 547: A30. arXiv:1205.1369. Bibcode:2012A&A...547A..30K. doi:10.1051/0004-6361/201219465. S2CID 118604150.

doi.org (Global: 2^nd place; English: 2^nd place)

Westerlund, B. E. (1968). "On the Extended Infrared Source in ARA". Astrophysical Journal. 154: L67. Bibcode:1968ApJ...154L..67W. doi:10.1086/180270.

Westerlund, B. (1961). "A Heavily Reddened Cluster in Ara". Astronomical Journal. 70: 57. Bibcode:1961AJ.....66T..57W. doi:10.1086/108585.

Arévalo, Aura (2019). The Red Supergiants in the Supermassive Stellar Cluster Westerlund 1 (Thesis). doi:10.11606/D.14.2019.tde-12092018-161841.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Westerlund, B. E. (1968). "On the Extended Infrared Source in ARA". Astrophysical Journal. 154: L67. Bibcode:1968ApJ...154L..67W. doi:10.1086/180270.

Westerlund, B. (1961). "A Heavily Reddened Cluster in Ara". Astronomical Journal. 70: 57. Bibcode:1961AJ.....66T..57W. doi:10.1086/108585.

Gallagher & Grebel (2002). "Extragalactic Star Clusters: Speculations on the Future". Extragalactic Star Clusters, IAU Symposium. 207: 207. arXiv:astro-ph/0109052. Bibcode:2002IAUS..207..745G.

Westerlund, B. E. (1987). "Photometry and spectroscopy of stars in the region of a highly reddened cluster in ARA". Astronomy and Astrophysics. Supplement. 70 (3): 311–324. Bibcode:1987A&AS...70..311W. ISSN 0365-0138.

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Westerlund 1 (English Wikipedia)

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