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Publikacje
2023
- Aberfelds, A., A. Bartkiewicz, M. Szymczak, Šteinbergs, J., Surcis, G., A. Kobak, M. Durjasz, Shmeld, I.,
"Milliarcsecond structure and variability of methanol maser emission in three high-mass protostars"
Mon. Not. R. Astron. Soc. 524 (2023), 599-618
DOI: 10.1093/mnras/stad1752 - A. Kobak, A. Bartkiewicz, M. Szymczak, Olech, M., M. Durjasz, P. Wolak, Chibueze, J.O., Hirota, T., Eislöffel, J., Stecklum, B., Sobolev, A., Bayandina, O., Orosz, G., Burns, R. A., Kim, K.-T., van den Heever, S.P.,
"Multi-frequency VLBI observations of maser lines during the 6.7 GHz maser flare in the high-mass young stellar object G24.33+0.14 "
Astron. Astrophys. 671, id.A135 (2023), 1-26
DOI: 10.1051/0004-6361/202244772
2022
- M. Durjasz, M. Szymczak, M. Olech, A. Bartkiewicz,
" Discovery of recurrent flares of 6.7 GHz methanol maser emission in Cepheus A HW2"
Astron. Astrophys. 663, id.A123 (2022), 1-16
DOI: 10.1051/0004-6361/202243552 - M. Olech, M. Durjasz, M. Szymczak, A. Bartkiewicz,
"Detection of periodic flares in 6.7 GHz methanol masers G45.804−0.356 and G49.043−1.079"
Astron. Astrophys. 661, id.A114 (2022), 1-7
DOI: 10.1051/0004-6361/202243108 - Hirota, T., P. Wolak, Hunter, T.R., Brogan, C.L., A. Bartkiewicz, M. Durjasz, A. Kobak, Olech, M., M. Szymczak, Burns, R., i inni,
"Millimeter methanol emission in the high-mass young stellar object G24.33+0.14 "
Publ. Astron. Soc. Jap. 74, Issue 5 (2022), 1234-1262
DOI: 10.1093/pasj/psac067
2021
- M. Durjasz, M. Szymczak, P. Wolak, A. Bartkiewicz,
"Observations of 12.2 GHz methanol masers towards northern high-mass protostellar objects"
Astron. Astrophys. 648,118D (2021), 1-13
DOI: 10.1051/0004-6361/202140385
2020
- M. Szymczak, P. Wolak, A. Bartkiewicz, M. Aramowicz, M. Durjasz,
"A search for the OH 6035 MHz line in high-mass star-forming regions"
Astron. Astrophys. 642, A145 (2020), 1-14
DOI: doi.org/10.1051/0004-6361/202039009 - M. Olech, M. Szymczak, P. Wolak, E. Gérard, A. Bartkiewicz,
"Long-term multi-frequency maser observations of the intermediate-mass young stellar object G107.298+5.639"
Astron. Astrophys. 634, A41 (2020), 1-18
DOI: doi.org/10.1051/0004-6361/201936943 - A. Bartkiewicz, A. Sanna, M. Szymczak, L. Moscadelli, H.J. van Langevelde, P. Wolak,
"The nature of the methanol maser ring G23.657–00.127 II. Expansion of the maser structure"
Astron. Astrophys. 637, A15 (2020), 1-12
DOI: doi.org/10.1051/0004-6361/202037562 - A. Bartkiewicz, M. Szymczak, M. Durjasz, M. Olech, R. Sarniak, P. Wolak, A. Kobak,
"Toruń Maser Group Highlights"
PAS 10 (2020), 166-168
DOI: https://www.pta.edu.pl/pliki/proc/vol10/v10p166.pdf
2019
- M. Olech, M. Szymczak, P. Wolak, R. Sarniak, A. Bartkiewicz,
"6.7GHz variability characteristics of new periodic methanol maser sources"
Mon. Not. R. Astron. Soc. 486 (2019), 1236-1254
DOI: doi.org/10.1093/mnras/stz926 - M. Durjasz, M. Szymczak, M. Olech,
"A highly variable methanol maser in G111.256–0.770"
Mon. Not. R. Astron. Soc. 485 (2019), 777-783
DOI: doi.org/10.1093/mnras/stz472 - F. Rajabi, M. Houde, A. Bartkiewicz, M. Olech, M. Szymczak, P. Wolak,
"New evidence for Dicke’s superradiance in the 6.7 GHz methanol spectral line in the interstellar medium "
Mon. Not. R. Astron. Soc. 484 (2019), 1590-1597
DOI: doi.org/10.1093/mnras/stz074 - P. Wolak, M. Olech, M. Szymczak, A. Bartkiewicz, M. Durjasz,
"Reappearance of methanol maser flare in G24.33+0.14"
ATel 13080 (2019), 1-1
2018
- A. Bartkiewicz, A. Sanna, M. Szymczak, L. Moscadelli, H. Langevelde,
"Expansion of methanol maser rings"
IAU S336 13 (2018), 211-214
DOI: 10.1017/S1743921317010055 - M. Szymczak, M. Olech, P. Wolak, E. Gerard, A. Bartkiewicz,
"Giant burst of methanol maser in S255IR-NIRS3"
Astron. Astrophys. 617, A80 (2018), 1-9
DOI: 10.1051/0004-6361/201833443 - P. Wolak, M. Szymczak, M. Olech, A. Bartkiewicz,
"Global outburst of methanol maser in G24.33+0.14"
IAU S336 13 (2018), 319-320
DOI: 10.1017/S1743921317009930 - M. Olech, M. Szymczak, P. Wolak, A. Bartkiewicz,
"Monitoring and search for periodic methanol masers"
IAU S336 13 (2018), 313-314
DOI: 10.1017/S1743921317010080 - M. Szymczak, M. Olech, R. Sarniak, P. Wolak, A. Bartkiewicz,
"Monitoring observations of 6.7 GHz methanol masers"
Mon. Not. R. Astron. Soc. 474 (2018), 219- 253
DOI: doi:10.1093/mnras/stx2693 - M. Szymczak, M. Olech, R. Sarniak, P. Wolak, A. Bartkiewicz,
"On the origin of methanol maser variability: Clues from long-term monitoring"
IAU S336 13 (2018), 41-44
DOI: 10.1017/S1743921317010523 - P. Wolak, M. Szymczak,
"Spectroscopy of astrophysical maser lines with the Torun 32m radio telescope"
IEEE Baltic URSI Symp. Conf. Rec. 1 (2018), 355-357
DOI: 10.23919/URSI.2018.8406760 - R. Sarniak, M. Szymczak, A. Bartkiewicz,
"Statistical analysis of the physical properties of the 6.7 GHz methanol maser features based on VLBI data"
IAU S336 13 (2018), 321-322
DOI: 10.1017/S1743921317009425 - A. Bartkiewicz, M. Szymczak,
"Study unreachable — Imaging the milliarcsecond structures of the methanol masers using the European VLBI Network"
IEEE Baltic URSI Symp. Conf. Rec. 1 (2018), 41-44
DOI: 10.23919/URSI.2018.8406759
2016
- M. Szymczak, M. Olech, P. Wolak, A. Bartkiewicz, M. Gawroński,
"Discovery of periodic and alternating flares of the methanol and water masers in G107.298+5.639 "
Mon. Not. R. Astron. Soc. 459 (2016), 56-60
DOI: doi:10.1093/mnrasl/slw044 - A. Bartkiewicz, M. Szymczak, Huib van Langevelde,
"European VLBI Network imaging of 6.7 GHz methanol masers"
Astron. Astrophys. 587, A104 (2016), 1-25
DOI: 10.1051/0004-6361/201527541
2015
- M. Szymczak, P. Wolak, A. Bartkiewicz,
"Discovery of four periodic methanol masers and updated light curve for a further one"
Mon. Not. R. Astron. Soc. 448 (2015), 2284-2293
DOI: 10.1093/mnras/stv145
2014
- M. Szymczak, P. Wolak, A. Bartkiewicz,
"6.7 GHz methanol maser variability in Cepheus A"
Mon. Not. R. Astron. Soc. 439 (2014), 407-415
DOI: 10.1093/mnras/stu019 - A. Bartkiewicz, M. Szymczak, H. van Langevelde,
"European VLBI Network observations of 6.7 GHz methanol masers in clusters of massive young stellar objects"
Astron. Astrophys. 564, A110 (2014), 1-22
DOI: 10.1051/0004-6361/201322629 - A. Bartkiewicz, A. Sanna, M. Szymczak, L. Moscadelli,
"The methanol maser ring G23.657-0.127 after 9 years"
PoS EVN 2014, 039 (2014), 1-6
DOI: pos.sissa.it/archive/conferences/230/039/EVN%202014_039.pdf - P. Wolak, M. Szymczak, A. Bartkiewicz, Eric Gerard,
"Violent maser events in the circumstellar envelope of the pre-planetary nebula IRAS18276-1431"
PoS EVN 2014, 116 (2014), 1-4
DOI: http://pos.sissa.it/archive/conferences/230/116/EVN%202014_116.pdf
2013
- P. Wolak, M. Szymczak, Eric Gerard,
"Long-term polarimetric observations of OH127.8+0.0"
Mon. Not. R. Astron. Soc. 430 (2013), 2499-2509
DOI: 10.1093/mnras/stt075 - P. Wolak, M. Szymczak, A. Bartkiewicz, E. Pazderski, A. Kus, A. Kępa, K. Katarzyński, K. Borkowski, R. Feiler, J. Mazurek, W. Szymański, J. Filarecki,
"Reappearance of 22 GHz water maser in proto-planetary nebula OH17.7-2.0."
ATel 5211 (2013), 1-1
2012
- A. Bartkiewicz, M. Szymczak, Huib van Langevelde,
"Milliarcsecond structure of water maser emission in two young high-mass stellar objects associated with methanol masers"
Astron. Astrophys. 541, A72 (2012), 1-9
DOI: http://dx.doi.org/10.1051/0004-6361/201218999 - James De Buizer, A. Bartkiewicz, M. Szymczak,
"Testing the Hypothesis that Methanol Maser Rings Trace Circumstellar Disks: High-resolution Near-infrared and Mid-infrared Imaging"
Astrophys. J. 754, Issue 2, article id.149 (2012), 1-15
DOI: 10.1088/0004-637X/754/2/149 - James De Buizer, A. Bartkiewicz, M. Szymczak,
"The infrared environment of methanol maser rings at high spatial resolution"
IAUS No. 287 287 (2012), 151-155
DOI: 10.1017/S1743921312006825 - M. Szymczak, P. Wolak, A. Bartkiewicz, K. Borkowski,
"The Torun catalogue of 6.7 GHz methanol masers"
Astron. Nachr. 333, Issue 7 (2012), 634-639
DOI: 10.1002/asna.201211702
2011
- M. Szymczak, P. Wolak, A. Bartkiewicz, H. van Langevelde,
"Periodic variability of 6.7 GHz methanol masers in G22.357+0.066"
Astron. Astrophys. 531, L3 (2011), 1-6
DOI: 10.1051/0004-6361/201117145 - A. Bartkiewicz, M. Szymczak, Y. Pihlstrom, H. van Langevelde, A. Brunthaler, M. Reid,
"VLA observations of water masers towards 6.7 GHz methanol maser sources"
Astron. Astrophys. 525, A120 (2011), 1-17
DOI: 10.1051/0004-6361/201015235
2009
- A. Bartkiewicz, M. Szymczak, H. van Langevelde, A.M.S. Richards, Y.M. Pihlstrom,
"The diversity of methanol maser morphologies from VLBI observations"
Astron. Astrophys. 502 (2009), 155-173
DOI: 10.1051/0004-6361/200912250
2008
- A. Bartkiewicz, A. Brunthaler, M. Szymczak, H. van Langevelde, M.J. Reid,
" The nature of the methanol maser ring G23.657-00.127. I. The distance through trigonometric parallax measurements"
Astron. Astrophys. 490 (2008), 787-792
DOI: 10.1051/0004-6361:200810470
2007
- M. Szymczak, A. Bartkiewicz, A.M.S. Richards,
"A multi-transition molecular line study of candidate massive young stellar objects associated with methanol masers"
Astron. Astrophys. 468 (2007), 617-625
DOI: 10.1051/0004-6361:20077289 - A. Bartkiewicz, H. van Langevelde, M. Szymczak, A. Brunthaler,
"G23.657-0.127, what can we learn from a perfect methanol maser source?"
IAUS 242 (2007), 190-191
DOI: 10.1017/S174392130701294X - A. Bartkiewicz, M. Szymczak, H. van Langevelde,
"Methanol masers and massive star formation"
IAUS 237 (2007), 395-395
DOI: 10.1017/S1743921307001834 - M. Szymczak, A. Bartkiewicz, A.M.S. Richards,
"Towards constraining the environments of methanol masers"
IAUS 242 (2007), 192-193
DOI: 10.1017/S1743921307012951
2005
- A. Bartkiewicz, M. Szymczak, R.J. Cohen, A.M.S. Richards,
"Magnetic field in Cepheus A as deduced from OH maser polarimetric observations"
Mon. Not. R. Astron. Soc. 361 (2005), 623-632
DOI: 10.1111/j.1365-2966.2005.09203.x - A. Bartkiewicz, M. Szymczak, H. van Langevelde,
"Ring shaped 6.7 GHz methanol maser emission around a young high-mass star"
Astron. Astrophys. 442 (2005), 61-64
DOI: 10.1051/0004-6361:200500190
2004
- A. Bartkiewicz, M. Szymczak, R.J. Cohen, A.M.S. Richards,
"Spatial and velocity coincidence of 4765- and 1720-MHz OH masers in two star-forming regions Cep A and W75N"
Mon. Not. R. Astron. Soc. 350 (2004), 1409-1415
DOI: 10.1111/j.1365-2966.2004.07735.x