{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,6]],"date-time":"2025-12-06T15:02:10Z","timestamp":1765033330764,"version":"3.46.0"},"reference-count":21,"publisher":"IOP Publishing","issue":"2","license":[{"start":{"date-parts":[[2021,3,1]],"date-time":"2021-03-01T00:00:00Z","timestamp":1614556800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2021,3,1]],"date-time":"2021-03-01T00:00:00Z","timestamp":1614556800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Res. Astron. Astrophys."],"published-print":{"date-parts":[[2021,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    We present results from our Giant Metrewave Radio Telescope (GMRT) H\n                    <jats:sc>i<\/jats:sc>\n                    , Himalayan Chandra Telescope (HCT) H\n                    <jats:italic>\u03b1<\/jats:italic>\n                    , 1 m Sampurnanand Telescope (ST) and 1.3 m Devasthal Fast Optical Telescope (DFOT) deep optical observations of the NGC 7805\/6 (Arp 112) system to test KUG 2359+311\u2019s tidal dwarf galaxy (TDG) candidacy and explore the properties of the interacting system. Our GMRT H I map shows no H I detection associated with KUG 2359+311, nor any H I tail or bridge-like structure connecting KUG 2359+311 to the NGC 7805\/6 system. Our HCT H\n                    <jats:italic>\u03b1<\/jats:italic>\n                    image, on the other hand, displays strong detections in KUG 2359+311, with net SFR \u223c 0.035 \u00b1 0.009\n                    <jats:italic>M<\/jats:italic>\n                    <jats:sub>\u2299<\/jats:sub>\n                    yr\n                    <jats:sup>\u22121<\/jats:sup>\n                    . The H\n                    <jats:italic>\u03b1<\/jats:italic>\n                    data constrain the redshift of KUG 2359+311 to 0.00 \u2264\n                    <jats:italic>z<\/jats:italic>\n                    \u2264 0.043, compared to the redshift of NGC 7806 of \u223c 0.015. TDGs detected to date have all been H\n                    <jats:sc>i<\/jats:sc>\n                    rich, and displayed H\n                    <jats:sc>i<\/jats:sc>\n                    , ionised gas and stellar tidal debris trails (bridges or tails) linking them to their parent systems. However, neither our H\n                    <jats:sc>i<\/jats:sc>\n                    data nor our optical imaging, while three magnitudes deeper than SDSS, reveals a tidal trail connecting KUG 2359+311 to NGC 7805\/6. Lack of H\n                    <jats:sc>i<\/jats:sc>\n                    , presence of an old stellar population, ongoing star formation and reasonably high SFR compared to normal dwarf galaxies suggest that KUG 2359+311 may not be an Arp 112 TDG. It is most likely a case of a regular gas-rich dwarf galaxy undergoing a morphological transformation after having lost its entire gas content to an interaction with the Arp 112 system. Redshift and metallicity from future spectroscopic observations of KUG 2359+311 would help clarify the nature of this enigmatic structure.\n                  <\/jats:p>","DOI":"10.1088\/1674-4527\/21\/2\/43","type":"journal-article","created":{"date-parts":[[2021,3,19]],"date-time":"2021-03-19T05:26:59Z","timestamp":1616131619000},"page":"043","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["Interacting system NGC 7805\/6 (Arp 112) and its tidal dwarf galaxy candidate"],"prefix":"10.1088","volume":"21","author":[{"given":"Zhen-Xing","family":"Fu","sequence":"first","affiliation":[]},{"given":"Chandreyee","family":"Sengupta","sequence":"additional","affiliation":[]},{"given":"Ramya","family":"Sethuram","sequence":"additional","affiliation":[]},{"given":"Bikram","family":"Pradhan","sequence":"additional","affiliation":[]},{"given":"Mridweeka","family":"Singh","sequence":"additional","affiliation":[]},{"given":"Kuntal","family":"Misra","sequence":"additional","affiliation":[]},{"given":"Tom. 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system NGC 7805\/6 (Arp 112) and its tidal dwarf galaxy candidate","name":"article_title","label":"Article Title"},{"value":"Research in Astronomy and Astrophysics","name":"journal_title","label":"Journal Title"},{"value":"paper","name":"article_type","label":"Article Type"},{"value":"\u00a9 2021 National Astronomical Observatories, CAS and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2020-08-18","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2020-10-21","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}