{"id":"https://openalex.org/W4366207751","doi":"https://doi.org/10.48550/arxiv.2304.07192","title":"Solar P-angle Alignment in GONG Dopplergrams","display_name":"Solar P-angle Alignment in GONG Dopplergrams","publication_year":2023,"publication_date":"2023-04-14","ids":{"openalex":"https://openalex.org/W4366207751","doi":"https://doi.org/10.48550/arxiv.2304.07192"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2304.07192","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2304.07192","pdf_url":"https://arxiv.org/pdf/2304.07192","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2304.07192","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5103923712","display_name":"Anna L. H. Hughes","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hughes, Anna L. H.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103379829","display_name":"Irene Gonz\u00e1lez Hern\u00e1ndez","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Gonzalez-Hernandez, Irene","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067709942","display_name":"Sean G. McManus","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"McManus, Sean G.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025650514","display_name":"Kiran Jain","orcid":"https://orcid.org/0000-0002-1905-1639","observed_orcids":["https://orcid.org/0000-0002-1905-1639"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jain, Kiran","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5078401562","display_name":"Sushanta C. Tripathy","orcid":"https://orcid.org/0000-0002-4995-6180","observed_orcids":["https://orcid.org/0000-0002-4995-6180"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tripathy, Sushanta C.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10251","display_name":"Solar and Space Plasma Dynamics","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10251","display_name":"Solar and Space Plasma Dynamics","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.00039999998989515007,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11484","display_name":"Adaptive optics and wavefront sensing","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/gong","display_name":"gong","score":0.7319999933242798},{"id":"https://openalex.org/keywords/image-registration","display_name":"image registration","score":0.7789999842643738},{"id":"https://openalex.org/keywords/image-fusion","display_name":"image fusion","score":0.6200000047683716},{"id":"https://openalex.org/keywords/solar-velocity-fields","display_name":"solar velocity fields","score":0.7179999947547913},{"id":"https://openalex.org/keywords/helioseismology","display_name":"helioseismology","score":0.8949999809265137}],"concepts":[{"id":"https://openalex.org/C2776694159","wikidata":"https://www.wikidata.org/wiki/Q351676","display_name":"Viewing angle","level":3,"score":0.6419339179992676},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6250892877578735},{"id":"https://openalex.org/C74050887","wikidata":"https://www.wikidata.org/wiki/Q848368","display_name":"Rotation (mathematics)","level":2,"score":0.6027751564979553},{"id":"https://openalex.org/C195475122","wikidata":"https://www.wikidata.org/wiki/Q2105737","display_name":"Position angle","level":3,"score":0.5327375531196594},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.530639111995697},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.5269963145256042},{"id":"https://openalex.org/C2779696439","wikidata":"https://www.wikidata.org/wiki/Q7512811","display_name":"Signature (topology)","level":2,"score":0.5254308581352234},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.48648425936698914},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.4396923780441284},{"id":"https://openalex.org/C2778439541","wikidata":"https://www.wikidata.org/wiki/Q7106412","display_name":"Oscillation (cell signaling)","level":2,"score":0.4214748740196228},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.3067610263824463},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.27094000577926636},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12124767899513245},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C128019096","wikidata":"https://www.wikidata.org/wiki/Q83341","display_name":"Liquid-crystal display","level":2,"score":0.0},{"id":"https://openalex.org/C98444146","wikidata":"https://www.wikidata.org/wiki/Q318","display_name":"Galaxy","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2304.07192","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2304.07192","pdf_url":"https://arxiv.org/pdf/2304.07192","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2304.07192","doi":"https://doi.org/10.48550/arxiv.2304.07192","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2304.07192","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2304.07192","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2304.07192","pdf_url":"https://arxiv.org/pdf/2304.07192","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2083122281","https://openalex.org/W2524444659","https://openalex.org/W2050705706","https://openalex.org/W2657262830","https://openalex.org/W22200609","https://openalex.org/W2883061342","https://openalex.org/W3099566158","https://openalex.org/W3157179103","https://openalex.org/W1611143820","https://openalex.org/W2885396267"],"abstract_inverted_index":{"In":[0,66],"helioseismic":[1],"studies,":[2,101],"an":[3],"observational":[4],"parameter":[5],"of":[6,20,46,75,93,116,131,134,157,172],"primary":[7],"concern":[8],"is":[9],"the":[10,12,17,27,61,77,80,90,94,105,114,121,126,132,154,158,170],"P-angle,":[11],"angle":[13,40],"along":[14],"which":[15],"lies":[16],"solar":[18,85,122],"axis":[19,133],"rotation":[21],"for":[22,128,165],"a":[23,44,108,175],"given":[24],"image.":[25],"For":[26],"six":[28],"observing":[29],"sites":[30],"employed":[31],"by":[32,88,153],"The":[33],"Global":[34],"Oscillation":[35],"Network":[36],"Group":[37],"(GONG),":[38],"this":[39,67],"acts":[41],"additionally":[42],"as":[43],"marker":[45],"relative":[47],"image":[48],"orientation,":[49],"allowing":[50],"concurrent":[51],"images":[52,87],"to":[53,59,113,147],"be":[54],"precisely":[55],"aligned":[56],"and":[57,71],"merged":[58],"provide":[60],"highest":[62],"possible":[63],"quality":[64],"data.":[65],"report,":[68],"we":[69,102],"present":[70],"investigate":[72],"two":[73,178],"methods":[74,164],"determining":[76],"P-angle":[78,148],"via":[79],"rotational":[81],"signature":[82,111],"embedded":[83],"in":[84],"Dopplergram":[86,106],"examining":[89],"large-scale":[91],"structure":[92],"observed":[95],"velocity":[96],"field.":[97],"As":[98],"with":[99,125,167],"other":[100],"find":[103],"that":[104,150],"produces":[107],"time-varying":[109],"'P-angle'":[110],"according":[112],"presentation":[115],"various":[117],"physical":[118],"phenomena":[119],"across":[120],"surface,":[123],"but":[124],"potential":[127],"sub-degree":[129],"identification":[130],"rotation.":[135],"However,":[136],"close":[137],"agreement":[138],"between":[139,177],"separate":[140],"P-angle-finding":[141,163],"techniques":[142],"also":[143],"reveals":[144],"current":[145],"limitations":[146],"determination":[149],"are":[151],"imposed":[152],"calibration":[155],"state":[156],"GONG-site":[159],"Dopplergrams,":[160],"leaving":[161],"these":[162],"GONG":[166],"errors":[168],"on":[169],"scale":[171],"less":[173],"than":[174],"degree":[176],"site.":[179]},"counts_by_year":[],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2025-10-10T00:00:00"}
