[en] Debris discs are typically revealed through the presence of excess emission at infrared wavelengths. Most discs exhibit excess at mid- and far-infrared wavelengths, analogous to the solar system’s Asteroid and Edgeworth-Kuiper belts. Recently, stars with strong (˜1%) excess at near-infrared wavelengths were identified through interferometric measurements. Using the HIgh Precision Polarimetric Instrument, we examined a sub-sample of these hot dust stars (and appropriate controls) at parts-per-million sensitivity in SDSS g‧ (green) and r‧ (red) filters for evidence of scattered light. No detection of strongly polarized emission from the hot dust stars is seen. We, therefore, rule out scattered light from a normal debris disk as the origin of this emission. A wavelength-dependent contribution from multiple dust components for hot dust stars is inferred from the dispersion (the difference in polarization angle in red and green) of southern stars. Contributions of 17 ppm (green) and 30 ppm (red) are calculated, with strict 3-σ upper limits of 76 and 68 ppm, respectively. This suggests weak hot dust excesses consistent with thermal emission, although we cannot rule out contrived scenarios, e.g., dust in a spherical shell or face-on discs. We also report on the nature of the local interstellar medium (ISM), obtained as a byproduct of the control measurements. Highlights include the first measurements of the polarimetric color of the local ISM and the discovery of a southern sky region with a polarization per distance thrice the previous maximum. The data suggest that λ [SUB]max[/SUB], the wavelength of maximum polarization, is bluer than typical.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Marshall, J. P. ; School of Physics, UNSW Australia, High Street, Kensington, NSW 2052, Australia ; Australian Centre for Astrobiology, UNSW Australia, High Street, Kensington, NSW 2052, Australia
Cotton, D. V.; School of Physics, UNSW Australia, High Street, Kensington, NSW 2052, Australia ; Australian Centre for Astrobiology, UNSW Australia, High Street, Kensington, NSW 2052, Australia
Bott, K.; School of Physics, UNSW Australia, High Street, Kensington, NSW 2052, Australia ; Australian Centre for Astrobiology, UNSW Australia, High Street, Kensington, NSW 2052, Australia
Ertel, S.; Steward Observatory, Department of Astronomy, University of Arizona, 933 N. Cherry Avenue, Tucson, AZ 85721, USA ; European Southern Observatory, Alonso de Cordova 3107, Vitacura, Casilla 19001 Santiago, Chile
Kennedy, G. M.; Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK
Wyatt, M. C.; Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK
del Burgo, C.; Instituto Nacional de Astrofísica, Óptica y Electrónica, Luis Enrique Erro 1, Sta. Ma. Tonantzintla, Puebla, Mexico
Absil, Olivier ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Bailey, J.; School of Physics, UNSW Australia, High Street, Kensington, NSW 2052, Australia ; Australian Centre for Astrobiology, UNSW Australia, High Street, Kensington, NSW 2052, Australia
Kedziora-Chudczer, L.; School of Physics, UNSW Australia, High Street, Kensington, NSW 2052, Australia ; Australian Centre for Astrobiology, UNSW Australia, High Street, Kensington, NSW 2052, Australia)
Language :
English
Title :
Polarization Measurements of Hot Dust Stars and the Local Interstellar Medium
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Absil O., Defrère D., Coudé du Foresto V. et al 2013 A&A 555 104
Absil O., di Folco E., Mérand A. et al 2006 A&A 452 237
Absil O., di Folco E., Mérand A. et al 2008 A&A 487 1041
Absil O., Mennesson B., Le Boquin J.-B. et al 2009 ApJ 704 150
Agol E. 2007 MNRAS 374 1271
Akeson R. L., Ciardi D. R., Millan-Gabet R. et al 2009 ApJ 691 1896
Aumann H. H., Beichman C. A., Gillett F. C. et al 1984 ApJL 278 L23
Backman D. E. and Paresce F. 1993 Protostars and Planets III ed E. H. Levy and J. I. Lunine (Tucson, AZ: Univ. of Arizona Press) 1253
Bailey J., Kedziora-Chudczer L., Cotton D. V. et al 2015 MNRAS 449 3064
Bailey J., Lucas P. W. and Hough J. H. 2010 MNRAS 405 2570
Beckwith S. V. W. 2008 ApJ 684 1404
Bonsor A., Augereau J.-C. and Thebault P. 2012 A&A 548 A104
Bonsor A., Raymond S. N. and Augerau J.-C. 2013 MNRAS 433 2938
Bott K., Bailey J., Kedziora-Chudczer L. et al 2016 MNRAS 459L 109
Burns J. A., Lamy P. L. and Soter S. 1979 Icar 40 1
Chen C. H., Sheehan P., Watson D. M. et al 2009 ApJ 701 1367
Clarke D. 2010 Stellar Polarimetry (Weinheim: Wiley-VCH)
Cotton D. V., Bailey J., Kedziora-Chudczer L. et al 2016 MNRAS 455 1607
Defrère D., Absil O., Augereau J.-C. et al 2011 A&A 534 5
Defrère D., Lebreton J., Le Boquin J.-B. et al 2012 A&A 546 L9
Dermott S. F., Nicholson P. D., Burns J. A. and Houck J. R. 1984 Natur 312 505
di Folco E., Absil O., Augereau J.-C. et al 2007 A&A 475 243
Eiroa C., Marshall J. P., Mora A. et al 2013 A&A 555 A11
Ertel S., Absil O., Defrère D. et al 2014 A&A 570 128
Ertel S., Defère D., Absil O. et al 2016 A&A submitted
Gehrels T. and Silvester A. B. 1965 AJ 70 579
Hough J. H., Lucas P. W., Bailey J. et al 2006 PASP 118 1302
Kennedy G. M., Matrá L., Marmier M. et al 2015a MNRAS 449 3121
Kennedy G. M. and Wyatt M. C. 2011 MNRAS 412 2137
Kennedy G. M. and Wyatt M. C. 2014 MNRAS 444 3164
Kennedy G. M., Wyatt M. C., Bailey V. et al 2015b ApJS 216 23
Krivov A. V. 2010 RAA 10 383
Lebreton J., van Lieshout R., Augereau J.-C. et al 2013 A&A 555 A146
Masiero J. R., Mainzer A. K., Hand E. et al 2011 ApJ 741 68
Matthews B. C., Krivov A. V., Wyatt M. C. et al 2014 Protostars and Planets VI ed H. Beuther et al (Tucson, AZ: Univ. Arizona Press) 914521
Mennesson B., Millan-Gabet R., Serabyn E. et al 2014 ApJ 797 119
Morales F. Y., Rieke G. H., Werner M. W. et al 2011 ApJL 730 L29
Naghizadeh-Khouei J. and Clarke D. 1993 A&A 274 974
Nesvorny D., Jenniksens P., Levison H. F. et al 2010 ApJ 713 816
Öhman Y. 1946 ApJ 104 460
Rieke G. H., Gaspar A. and Ballering N. P. 2015 ApJ 816 50
Roberge A., Chen C. H., Milan-Gabet R. et al 2012 PASP 124 799
Schneider G., Grady C. A., Hines D. C. et al 2014 AJ 148 59
Seager S., Whitney B. A. and Sasselov D. D. 2000 ApJ 540 504
Serkowski K. 1962 Advances in Astronomy and Astrophysics ed Z. Kopal (New York and London: Academic) 1
Serkowski K., Matthewson D. S. and Ford V. L. 1975 ApJ 196 261
Sonneborn G. 1982 Proc. IAU Symp. 98, Be stars ed M. Jaschek and H.-G. Groth (Dordrecht: Reidel) 493
Stark C. C., Kuchner M. J. and Lincowski A. 2015 ApJ 801 128
Su K. Y. L., Rieke G. H., Malhotra R. et al 2013 ApJ 763 118
Thureau N. D., Greaves J. S., Matthews B. C. et al 2014 MNRAS 445 2558
Tinbergen J. 1982 A&A 105 53
Treanor P. J. 1963 AJ 68 185
van Belle G. T. 2012 A&ARv 20 51
van Lieshout R., Dominik C., Kama M. and Min M. 2014 A&A 571 A51
Wardle J. F. C. and Kronenberg P. P. 1974 ApJ 194 249
Weinberger A. J., Bryden G., Kennedy G. M. et al 2015 ApJS 216 24
Wiktorowicz S. and Nofi L. A. 2015 ApJL 800 L1
Wilking B. A., Lebofsky M. J. and Rieke G. H. 1982 AJ 87 695
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.