eprintid: 10095587 rev_number: 14 eprint_status: archive userid: 608 dir: disk0/10/09/55/87 datestamp: 2020-08-24 10:13:57 lastmod: 2021-09-26 23:06:33 status_changed: 2020-08-24 10:13:57 type: article metadata_visibility: show creators_name: Drew, JE creators_name: Greimel, R creators_name: Irwin, MJ creators_name: Aungwerojwit, A creators_name: Barlow, MJ creators_name: Corradi, RLM creators_name: Drake, JJ creators_name: Gansicke, BT creators_name: Groot, P creators_name: Hales, A creators_name: Hopewell, EC creators_name: Irwin, J creators_name: Knigge, C creators_name: Leisy, P creators_name: Lennon, DJ creators_name: Mampaso, A creators_name: Masheder, MRW creators_name: Matsuura, M creators_name: Morales-Rueda, L creators_name: Morris, RAH creators_name: Parker, QA creators_name: Phillipps, S creators_name: Rodriguez-Gil, P creators_name: Roelofs, G creators_name: Skillen, I creators_name: Sokoloski, JL creators_name: Steeghs, D creators_name: Unruh, YC creators_name: Viironen, K creators_name: Vink, JS creators_name: Walton, NA creators_name: Witham, A creators_name: Wright, N creators_name: Zijlstra, AA creators_name: Zurita, A title: The INT photometric H alpha Survey of the Northern Galactic Plane (IPHAS) ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F60 keywords: surveys, stars: emission-line, Be, stars: general, Galaxy: disc, Galaxy: stellar content note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. abstract: The Isaac Newton Telescope (INT) Photometric Hα Survey of the Northern Galactic Plane (IPHAS) is a 1800-deg2 CCD survey of the northern Milky Way spanning the latitude range −5° < b < + 5° and reaching down to r′≃ 20 (10s). Representative observations and an assessment of point-source data from IPHAS, now underway, are presented. The data obtained are Wide Field Camera images in the Hα narrow-band, and Sloan r′ and i′ broad-band filters. We simulate IPHAS (r′−Hα, r′−i′) point-source colours using a spectrophotometric library of stellar spectra and available filter transmission profiles: this defines the expected colour properties of (i) solar metallicity stars, without Hα emission, and (ii) emission-line stars. Comparisons with observations of fields in Aquila show that the simulations of normal star colours reproduce the observations well for all spectral types earlier than M. A further comparison between colours synthesized from long-slit flux-calibrated spectra and IPHAS photometry for six objects in a Taurus field confirms the reliability of the pipeline calibration. Spectroscopic follow-up of a field in Cepheus shows that sources lying above the main stellar locus in the (r′− Hα, r′−i′) plane are confirmed to be emission-line objects with very few failures. In this same field, examples of Hα deficit objects (a white dwarf and a carbon star) are shown to be readily distinguished by their IPHAS colours. The role IPHAS can play in studies of spatially resolved northern Galactic nebulae is discussed briefly and illustrated by a continuum-subtracted mosaic image of Shajn 147 (a supernova remnant, 3° in diameter). The final catalogue of IPHAS point sources will contain photometry on about 80 million objects. Used on its own, or in combination with near-infrared photometric catalogues, IPHAS is a major resource for the study of stellar populations making up the disc of the Milky Way. The eventual yield of new northern emission-line objects from IPHAS is likely to be an order of magnitude increase on the number already known. date: 2005-09 date_type: published publisher: OXFORD UNIV PRESS official_url: https://doi.org/10.1111/j.1365-2966.2005.09330.x oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 138653 doi: 10.1111/j.1365-2966.2005.09330.x lyricists_name: Barlow, Michael lyricists_name: Drew, Janet lyricists_name: Matsuura, Mikako lyricists_name: Walton, Nicholas Andrew lyricists_id: MJBAR75 lyricists_id: JEDRE89 lyricists_id: MMATS97 lyricists_id: WALTO97 actors_name: Barlow, Michael actors_id: MJBAR75 actors_role: owner full_text_status: public publication: Monthly Notices of the Royal Astronomical Society volume: 362 number: 3 pagerange: 753-776 pages: 24 issn: 1365-2966 citation: Drew, JE; Greimel, R; Irwin, MJ; Aungwerojwit, A; Barlow, MJ; Corradi, RLM; Drake, JJ; ... Zurita, A; + view all <#> Drew, JE; Greimel, R; Irwin, MJ; Aungwerojwit, A; Barlow, MJ; Corradi, RLM; Drake, JJ; Gansicke, BT; Groot, P; Hales, A; Hopewell, EC; Irwin, J; Knigge, C; Leisy, P; Lennon, DJ; Mampaso, A; Masheder, MRW; Matsuura, M; Morales-Rueda, L; Morris, RAH; Parker, QA; Phillipps, S; Rodriguez-Gil, P; Roelofs, G; Skillen, I; Sokoloski, JL; Steeghs, D; Unruh, YC; Viironen, K; Vink, JS; Walton, NA; Witham, A; Wright, N; Zijlstra, AA; Zurita, A; - view fewer <#> (2005) The INT photometric H alpha Survey of the Northern Galactic Plane (IPHAS). Monthly Notices of the Royal Astronomical Society , 362 (3) pp. 753-776. 10.1111/j.1365-2966.2005.09330.x <https://doi.org/10.1111/j.1365-2966.2005.09330.x>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10095587/1/drew05_iphas.pdf