The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks
— Northern Arizona University Skip to main navigation Skip to search Skip to main content Northern Arizona University Home Home Profiles Departments and Centers Scholarly Works Activities Grants Datasets Prizes Search by expertise, name or affiliation The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks Zahed Wahhaj, Lucas Cieza, David W. Koerner, Karl R. Stapelfeldt, Deborah L. Padgett, April Case, James R. Keller, Bruno Merín, Neal J. Evans, Paul Harvey, Anneila Sargent, Ewine F. Van Dishoeck, Lori Allen, Geoff Blake, Tim Brooke, Nicholas Chapman, Lee Mundy, Philip C. Myers Astronomy and Planetary Sciences Research output: Contribution to journal › Article › peer-review 71 Scopus citations Overview Fingerprint Abstract We present 3.6 to 70 μm Spitzer photometry of 154 weak-line T Tauri stars (WTTSs) in the Chamaeleon, Lupus, Ophiuchus, and Taurus star formation regions, all of which are within 200 pc of the Sun. For a comparative study, we also include 33 classical T Tauri stars which are located in the same star-forming regions. Spitzer sensitivities allow us to robustly detect the photosphere in the IRAC bands (3.6 to 8 μm) and the 24 μm MIPS band. In the 70 μm MIPS band, we are able to detect dust emission brighter than roughly 40 times the photosphere. These observations represent the most sensitive WTTSs survey in the mid-to far-infrared to date and reveal the frequency of outer disks (r = 3-50 AU) around WTTSs. The 70 μm photometry for half the c2d WTTSs sample (the on-cloud objects), which were not included in the earlier papers in this series, those of Padgett et al. and Cieza et al., are presented here for the first time. We find a disk frequency of 19% for on-cloud WTTSs, but just 5% for off-cloud WTTSs, similar to the value reported in the earlier works. WTTSs exhibit spectral energy distributions that are quite diverse, spanning the range from optically thick to optically thin disks. Most disks become more tenuous than Ldisk/L* = 2 × 10 -3 in 2 Myr and more tenuous than Ldisk/L * = 5 × 10-4 in 4 Myr. Original language English (US) Pages (from-to) 835-854 Number of pages 20 Journal Astrophysical Journal Volume 724 Issue number 2 DOIs https://doi.org/10.1088/0004-637X/724/2/835 State Published - Dec 1 2010 Keywords Infrared: stars Planetary systems Protoplanetary disks Stars: pre-main sequence ASJC Scopus subject areas Astronomy and Astrophysics Space and Planetary Science Access to Document 10.1088/0004-637X/724/2/835 Other files and links Link to publication in Scopus Fingerprint Dive into the research topics of 'The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks'. Together they form a unique fingerprint. T Tauri stars Physics & Astronomy 100% debris Physics & Astronomy 84% transition Earth & Environmental Sciences 47% comparative study Earth & Environmental Sciences 23% photosphere Physics & Astronomy 21% dust Earth & Environmental Sciences 19% photometry Physics & Astronomy 18% energy Earth & Environmental Sciences 12% View full fingerprint Cite this APA Standard Harvard Vancouver Author BIBTEX RIS Wahhaj, Z., Cieza, L., Koerner, D. W., Stapelfeldt, K. R., Padgett, D. L., Case, A., Keller, J. R., Merín, B., Evans, N. J., Harvey, P., Sargent, A., Van Dishoeck, E. F., Allen, L., Blake, G., Brooke, T., Chapman, N., Mundy, L., & Myers, P. C. (2010). The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks. Astrophysical Journal, 724(2), 835-854. https://doi.org/10.1088/0004-637X/724/2/835 The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks. / Wahhaj, Zahed; Cieza, Lucas; Koerner, David W.; Stapelfeldt, Karl R.; Padgett, Deborah L.; Case, April; Keller, James R.; Merín, Bruno; Evans, Neal J.; Harvey, Paul; Sargent, Anneila; Van Dishoeck, Ewine F.; Allen, Lori; Blake, Geoff; Brooke, Tim; Chapman, Nicholas; Mundy, Lee; Myers, Philip C. In: Astrophysical Journal, Vol. 724, No. 2, 01.12.2010, p. 835-854. Research output: Contribution to journal › Article › peer-review Wahhaj, Z, Cieza, L, Koerner, DW, Stapelfeldt, KR, Padgett, DL, Case, A, Keller, JR, Merín, B, Evans, NJ, Harvey, P, Sargent, A, Van Dishoeck, EF, Allen, L, Blake, G, Brooke, T, Chapman, N, Mundy, L & Myers, PC 2010, 'The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks', Astrophysical Journal, vol. 724, no. 2, pp. 835-854. https://doi.org/10.1088/0004-637X/724/2/835 Wahhaj Z, Cieza L, Koerner DW, Stapelfeldt KR, Padgett DL, Case A et al. The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks. Astrophysical Journal. 2010 Dec 1;724(2):835-854. https://doi.org/10.1088/0004-637X/724/2/835 Wahhaj, Zahed ; Cieza, Lucas ; Koerner, David W. ; Stapelfeldt, Karl R. ; Padgett, Deborah L. ; Case, April ; Keller, James R. ; Merín, Bruno ; Evans, Neal J. ; Harvey, Paul ; Sargent, Anneila ; Van Dishoeck, Ewine F. ; Allen, Lori ; Blake, Geoff ; Brooke, Tim ; Chapman, Nicholas ; Mundy, Lee ; Myers, Philip C. / The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks. In: Astrophysical Journal. 2010 ; Vol. 724, No. 2. pp. 835-854. @article{8062ee74aea94a7c84f6ba6ee7db719f, title = "The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks", abstract = "We present 3.6 to 70 μm Spitzer photometry of 154 weak-line T Tauri stars (WTTSs) in the Chamaeleon, Lupus, Ophiuchus, and Taurus star formation regions, all of which are within 200 pc of the Sun. For a comparative study, we also include 33 classical T Tauri stars which are located in the same star-forming regions. Spitzer sensitivities allow us to robustly detect the photosphere in the IRAC bands (3.6 to 8 μm) and the 24 μm MIPS band. In the 70 μm MIPS band, we are able to detect dust emission brighter than roughly 40 times the photosphere. These observations represent the most sensitive WTTSs survey in the mid-to far-infrared to date and reveal the frequency of outer disks (r = 3-50 AU) around WTTSs. The 70 μm photometry for half the c2d WTTSs sample (the on-cloud objects), which were not included in the earlier papers in this series, those of Padgett et al. and Cieza et al., are presented here for the first time. We find a disk frequency of 19% for on-cloud WTTSs, but just 5% for off-cloud WTTSs, similar to the value reported in the earlier works. WTTSs exhibit spectral energy distributions that are quite diverse, spanning the range from optically thick to optically thin disks. Most disks become more tenuous than Ldisk/L* = 2 × 10 -3 in 2 Myr and more tenuous than Ldisk/L * = 5 × 10-4 in 4 Myr.", keywords = "Infrared: stars, Planetary systems, Protoplanetary disks, Stars: pre-main sequence", author = "Zahed Wahhaj and Lucas Cieza and Koerner, {David W.} and Stapelfeldt, {Karl R.} and Padgett, {Deborah L.} and April Case and Keller, {James R.} and Bruno Mer{\'i}n and Evans, {Neal J.} and Paul Harvey and Anneila Sargent and {Van Dishoeck}, {Ewine F.} and Lori Allen and Geoff Blake and Tim Brooke and Nicholas Chapman and Lee Mundy and Myers, {Philip C.}", year = "2010", month = dec, day = "1", doi = "10.1088/0004-637X/724/2/835", language = "English (US)", volume = "724", pages = "835--854", journal = "Astrophysical Journal", issn = "0004-637X", publisher = "IOP Publishing Ltd.", number = "2", } TY - JOUR T1 - The Spitzer c2d survey of weak-line T Tauri stars. III. The transition from primordial disks to debris disks AU - Wahhaj, Zahed AU - Cieza, Lucas AU - Koerner, David W. AU - Stapelfeldt, Karl R. AU - Padgett, Deborah L. AU - Case, April AU - Keller, James R. AU - Merín, Bruno AU - Evans, Neal J. AU - Harvey, Paul AU - Sargent, Anneila AU - Van Dishoeck, Ewine F. AU - Allen, Lori AU - Blake, Geoff AU - Brooke, Tim AU - Chapman, Nicholas AU - Mundy, Lee AU - Myers, Philip C. PY - 2010/12/1 Y1 - 2010/12/1 N2 - We present 3.6 to 70 μm Spitzer photometry of 154 weak-line T Tauri stars (WTTSs) in the Chamaeleon, Lupus, Ophiuchus, and Taurus star formation regions, all of which are within 200 pc of the Sun. For a comparative study, we also include 33 classical T Tauri stars which are located in the same star-forming regions. Spitzer sensitivities allow us to robustly detect the photosphere in the IRAC bands (3.6 to 8 μm) and the 24 μm MIPS band. In the 70 μm MIPS band, we are able to detect dust emission brighter than roughly 40 times the photosphere. These observations represent the most sensitive WTTSs survey in the mid-to far-infrared to date and reveal the frequency of outer disks (r = 3-50 AU) around WTTSs. The 70 μm photometry for half the c2d WTTSs sample (the on-cloud objects), which were not included in the earlier papers in this series, those of Padgett et al. and Cieza et al., are presented here for the first time. We find a disk frequency of 19% for on-cloud WTTSs, but just 5% for off-cloud WTTSs, similar to the value reported in the earlier works. WTTSs exhibit spectral energy distributions that are quite diverse, spanning the range from optically thick to optically thin disks. Most disks become more tenuous than Ldisk/L* = 2 × 10 -3 in 2 Myr and more tenuous than Ldisk/L * = 5 × 10-4 in 4 Myr. AB - We present 3.6 to 70 μm Spitzer photometry of 154 weak-line T Tauri stars (WTTSs) in the Chamaeleon, Lupus, Ophiuchus, and Taurus star formation regions, all of which are within 200 pc of the Sun. For a comparative study, we also include 33 classical T Tauri stars which are located in the same star-forming regions. Spitzer sensitivities allow us to robustly detect the photosphere in the IRAC bands (3.6 to 8 μm) and the 24 μm MIPS band. In the 70 μm MIPS band, we are able to detect dust emission brighter than roughly 40 times the photosphere. These observations represent the most sensitive WTTSs survey in the mid-to far-infrared to date and reveal the frequency of outer disks (r = 3-50 AU) around WTTSs. The 70 μm photometry for half the c2d WTTSs sample (the on-cloud objects), which were not included in the earlier papers in this series, those of Padgett et al. and Cieza et al., are presented here for the first time. We find a disk frequency of 19% for on-cloud WTTSs, but just 5% for off-cloud WTTSs, similar to the value reported in the earlier works. WTTSs exhibit spectral energy distributions that are quite diverse, spanning the range from optically thick to optically thin disks. Most disks become more tenuous than Ldisk/L* = 2 × 10 -3 in 2 Myr and more tenuous than Ldisk/L * = 5 × 10-4 in 4 Myr. KW - Infrared: stars KW - Planetary systems KW - Protoplanetary disks KW - Stars: pre-main sequence UR - http://www.scopus.com/inward/record.url?scp=78650081923&partnerID=8YFLogxK UR - http://www.scopus.com/inward/citedby.url?scp=78650081923&partnerID=8YFLogxK U2 - 10.1088/0004-637X/724/2/835 DO - 10.1088/0004-637X/724/2/835 M3 - Article AN - SCOPUS:78650081923 VL - 724 SP - 835 EP - 854 JO - Astrophysical Journal JF - Astrophysical Journal SN - 0004-637X IS - 2 ER - Powered by Pure, Scopus & Elsevier Fingerprint Engine™ © 2022 Elsevier B.V We use cookies to help provide and enhance our service and tailor content. By continuing you agree to the use of cookies Log in to Pure About web accessibility Contact us
