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<ri:Resource created="2016-02-23T16:10:37Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/ConeSearch/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/ConeSearch.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>Arecibo Pulsar-ALFA (PALFA) survey. IV.</title><shortName>J/ApJ/812/81</shortName><identifier>ivo://CDS.VizieR/J/ApJ/812/81</identifier><altIdentifier>doi:10.26093/cds/vizier.18120081</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Lazarus P.</name></creator><creator><name>Brazier A.</name></creator><creator><name>Hessels J.W.T.</name></creator><creator><name>Karako-Argaman C.</name></creator><creator><name>Kaspi V.M.,Lynch R.</name></creator><creator><name>Madsen E.</name></creator><creator><name>Patel C.</name></creator><creator><name>Ransom S.M.</name></creator><creator><name>Scholz P.</name></creator><creator><name>Swiggum J.,Zhu W.W.</name></creator><creator><name>Allen B.</name></creator><creator><name>Bogdanov S.</name></creator><creator><name>Camilo F.</name></creator><creator><name>Cardoso F.</name></creator><creator><name>Chatterjee S.,Cordes J.M.</name></creator><creator><name>Crawford F.</name></creator><creator><name>Deneva J.S.</name></creator><creator><name>Ferdman R.</name></creator><creator><name>Freire P.C.C.,Jenet F.A.</name></creator><creator><name>Knispel B.</name></creator><creator><name>Lee K.J.</name></creator><creator><name>van Leeuwen J.</name></creator><creator><name>Lorimer D.R.</name></creator><creator><name>Lyne A.G.,McLaughlin M.A.</name></creator><creator><name>Siemens X.</name></creator><creator><name>Spitler L.G.</name></creator><creator><name>Stairs I.H.</name></creator><creator><name>Stovall K.,Venkataraman A.</name></creator><date role="Updated">2017-11-06T12:23:35Z</date><date role="Created">2016-02-23T16:10:37Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>pulsars</subject><subject>surveys</subject><subject>radio-continuum-emission</subject><description>The on-going Arecibo Pulsar-ALFA (PALFA) survey began in 2004 and is searching for radio pulsars in the Galactic plane at 1.4GHz. Here we present a comprehensive description of one of its main data reduction pipelines that is based on the PRESTO software and includes new interference-excision algorithms and candidate selection heuristics. This pipeline has been used to discover 40 pulsars, bringing the survey's discovery total to 144 pulsars. Of the new discoveries, eight are millisecond pulsars (MSPs; P&lt;10ms) and one is a Fast Radio Burst (FRB). This pipeline has also re-detected 188 previously known pulsars, 60 of them previously discovered by the other PALFA pipelines. We present a novel method for determining the survey sensitivity that accurately takes into account the effects of interference and red noise: we inject synthetic pulsar signals with various parameters into real survey observations and then attempt to recover them with our pipeline. We find that the PALFA survey achieves the sensitivity to MSPs predicted by theoretical models but suffers a degradation for P&gt;~100ms that gradually becomes up to ~10 times worse for P&gt;4s at DM&lt;150pc/cm^3^. We estimate 33+/-3% of the slower pulsars are missed, largely due to red noise. A population synthesis analysis using the sensitivity limits we measured suggests the PALFA survey should have found 224+/-16 un-recycled pulsars in the data set analyzed, in agreement with the 241 actually detected. The reduced sensitivity could have implications on estimates of the number of long-period pulsars in the Galaxy.</description><source format="bibcode">2015ApJ...812...81L</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/812/81</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>IsServedBy</relationshipType><relatedResource>Conesearch service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/VII/189">VII/189 : Catalog of Pulsars (Taylor+ 1995)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/218/11">J/ApJS/218/11 : The 5yr Fermi/GBM magnetar burst catalog (Collazzi+, 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/804/23">J/ApJ/804/23 : 327MHz observations of 124 pulsars (Krishnakumar+, 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/212/6">J/ApJS/212/6 : The McGill magnetar catalog (Olausen+, 2014)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/208/17">J/ApJS/208/17 : 2nd Fermi LAT cat. of gamma-ray pulsars (2PC) (Abdo+, 2013)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/769/108">J/ApJ/769/108 : Optical photometry of 4 millisecond pulsars (Breton+, 2013)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/424/2832">J/MNRAS/424/2832 : Pulsars in {gamma}-ray sources (Lee+, 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/139/2130">J/AJ/139/2130 : ALFA-ZOA precursor observation (Henning+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AZh/84/685">J/AZh/84/685 : Scattering of pulsar radio emission (Kuz'min+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/372/777">J/MNRAS/372/777 : Parkes Multibeam Pulsar Survey. 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(Lorimer+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AZh/83/542">J/AZh/83/542 : Integrated Radio Luminosities of Pulsars (Malov+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/359/1524">J/MNRAS/359/1524 : 10 new pulsars in Arecibo drift-scan survey (Lorimer+, 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/605/759">J/ApJ/605/759 : Multifrequency obs. of radio pulse broadening (Bhat+, 2004)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AZh/79/501">J/AZh/79/501 : Radio luminosities of normal + ms pulsars (Kuz'min, 2002)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/328/17">J/MNRAS/328/17 : Parkes Multi-Beam Pulsar Survey (Manchester+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AZh/77/499">J/AZh/77/499 : Flux densities of 235 pulsars at 102.5MHz (Malofeev+, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/147/195">J/A+AS/147/195 : 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