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    <title>IPHAS: Data</title>
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    <div class="page-header">
      <h1>IPHAS Data Access</h1>
    </div>

    <p>
    The INT/WFC Photometric H-Alpha Survey of the Northern Galactic Plane 
    (IPHAS) is a 1860 deg<sup>2</sup> imaging survey 
    of the Northern Milky Way at red visible wavelengths.
    It covers Galactic latitudes |b| &lt; 5&deg; and 
    longitudes l = 30-215&deg; in the broad-band r, i and narrow-band H&alpha;
    filters.
    </p>
  
    <div class="page-header">
      <h3>Primary products</h3>
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    <p>
      The most recent data release, DR2, is described in <a href='http://arxiv.org/abs/1406.4862'>Barentsen et al (2014)</a>.
      The primary data products provided by this release are:
    </p>

    <table class="table table-striped table-hover">
    <thead>
      <tr><th>Product</th><th>Link</th><th>Description</th></tr>
    </thead>
    <tbody>
      <tr>
        <td>Catalogue</td>
        <td><a href='/dr2'>iphas.org/dr2</a></i></td>
        <td>Photometry and astrometry for 219 million objects detected in the survey images.</td>
      </tr>
      <tr>
        <td>Images</td>
        <td><a href='/images'>iphas.org/images</a></td>
        <td>The pipeline-processed CCD images in the r, i, and H&alpha;-bands.</td>
      </tr>
     <tr>
        <td>Extinction map</td>
        <td><a href='/extinction'>iphas.org/extinction</a></td>
        <td>A 3D map of interstellar dust extinction derived from the catalogue.</td>
      </tr>
    </tbody>
    </table>

    <div class="page-header">
      <h3>Special objects</h3>
    </div>

    <p>Lists of special classes of objects discovered in IPHAS data include:</p>

    <table class="table table-striped table-hover">
    <thead>
      <tr><th>Object class</th><th>Link</th><th>Description</th></tr>
    </thead>
    <tbody>
      <tr>
        <td>H&alpha; emission-line objects</td>
        <td><i>in preparation</i></td>
        <td></td>
      </tr>    
      <tr>
        <td>Symbiotic stars</td>
        <td><a href='/symbiotics'>iphas.org/symbiotics</a></td>
        <td>Positions and spectra of symbiotic stars.</td>
      </tr>
      <tr>
        <td>Classical Be stars</td>
        <td><a href='/classical-be-stars'>iphas.org/classical-be-stars</a></td>
        <td>Parameters and spectra of Classical Be stars.</td>
      </tr>
      <tr>
        <td>Planetary nebulae</td>
        <td><a href='http://mnras.oxfordjournals.org/content/443/4/3388'>MNRAS, 443, 3388</a></td>
        <td>A catalogue of new extended planetary nebulae.</td>
      </tr>  
    </tbody>
    </table>

    <div class="page-header">
      <h3>Acknowledging IPHAS data</h3>
    </div>

    <p>
      Publications arising from IPHAS data should cite and acknowledge the survey and its data products. 
      The primary reference for defining the survey is 
      <a href="http://adsabs.harvard.edu/abs/2005MNRAS.362..753D">Drew et al 2005</a> 
      [<a href="http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005MNRAS.362..753D&data_type=BIBTEX&db_key=AST">bibtex</a>],
      and the latest catalogue and image products are described by
      <a href='http://adsabs.harvard.edu/abs/2014MNRAS.444.3230B'>Barentsen et al 2014</a> 
      [<a href="http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2014MNRAS.444.3230B&data_type=BIBTEX&db_key=AST">bibtex</a>].
    </p>

    <p>
      We kindly request the following text to be included in the acknowledgment sections of papers:
    </p>

    <blockquote>
      <p style='font-size:0.8em;'>
      <i>This paper makes use of data obtained as part of 
      the INT Photometric Hα Survey of the Northern Galactic Plane 
      (IPHAS, www.iphas.org) carried out at the Isaac Newton Telescope (INT). 
      The INT is operated on the island of La Palma by the Isaac Newton Group 
      in the Spanish Observatorio del Roque de los Muchachos 
      of the Instituto de Astrofisica de Canarias. 
      All IPHAS data are processed by the Cambridge Astronomical Survey Unit, 
      at the Institute of Astronomy in Cambridge.  
      The bandmerged DR2 catalogue was assembled 
      at the Centre for Astrophysics Research, University of Hertfordshire, 
      supported by STFC grant ST/J001333/1.</i>
      </p>
    </blockquote>

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