High-resolution infrared imaging and spectroscopy of the Z Canis Majoris system during quiescence and outburst

Sasha Hinkley; Lynne Hillenbrand; Ben R. Oppenheimer; Emily L. Rice; Laurent Pueyo; Gautam Vasisht; Neil Zimmerman; Adam L. Kraus; Michael J. Ireland; Douglas Brenner; Charles Beichman; Richard Dekany; Jennifer E. Roberts; Ian R. Parry; Lewis C. Roberts; Justin R. Crepp; Rick Burruss; J. Kent Wallace; Eric Cady; Chengxing Zhai; Michael Shao; Thomas Lockhart; Rémi Soummer; Anand Sivaramakrishnan

doi:10.1088/2041-8205/763/1/L9

High-resolution infrared imaging and spectroscopy of the Z Canis Majoris system during quiescence and outburst

Sasha Hinkley^*, Lynne Hillenbrand, Ben R. Oppenheimer, Emily L. Rice, Laurent Pueyo, Gautam Vasisht, Neil Zimmerman, Adam L. Kraus, Michael J. Ireland, Douglas Brenner, Charles Beichman, Richard Dekany, Jennifer E. Roberts, Ian R. Parry, Lewis C. Roberts, Justin R. Crepp, Rick Burruss, J. Kent Wallace, Eric Cady, Chengxing ZhaiMichael Shao, Thomas Lockhart, Rémi Soummer, Anand Sivaramakrishnan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

15 Downloads (Pure)

Abstract

We present adaptive optics photometry and spectra in the JHKL bands along with high spectral resolution K-band spectroscopy for each component of the Z Canis Majoris system. Our high angular resolution photometry of this very young (≲1 Myr) binary, comprised of an FU Ori object and a Herbig Ae/Be star, was gathered shortly after the 2008 outburst while our high-resolution spectroscopy was gathered during a quiescent phase. Our photometry conclusively determines that the outburst was due solely to the embedded Herbig Ae/Be member, supporting results from earlier works, and that the optically visible FU Ori component decreased slightly (∼30%) in luminosity during the same period, consistent with previous works on the variability of FU Ori type systems. Further, our high-resolution K-band spectra definitively demonstrate that the 2.294 μm CO absorption feature seen in composite spectra of the system is due solely to the FU Ori component, while a prominent CO emission feature at the same wavelength, long suspected to be associated with the innermost regions of a circumstellar accretion disk, can be assigned to the Herbig Ae/Be member. These findings clarify previous analyses of the origin of the CO emission in this complex system.

Original language	English
Article number	L9
Pages (from-to)	1-5
Number of pages	5
Journal	The Astrophysical Journal Letters
Volume	763
Issue number	1
DOIs	https://doi.org/10.1088/2041-8205/763/1/L9
Publication status	Published - 20 Jan 2013

Bibliographical note

Copyright 2013 The American Astronomical Society. Firstly published in the Astrophysical Journal Letters, 763(1), L9, 2013, published by IOP Publishing. The original publication is available at http://www.doi.org/10.1088/2041-8205/763/1/L9. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Access to Document

10.1088/2041-8205/763/1/L9

Publisher version (open access).pdfFinal published version, 360 KB

Cite this

Hinkley, S., Hillenbrand, L., Oppenheimer, B. R., Rice, E. L., Pueyo, L., Vasisht, G., Zimmerman, N., Kraus, A. L., Ireland, M. J., Brenner, D., Beichman, C., Dekany, R., Roberts, J. E., Parry, I. R., Roberts, L. C., Crepp, J. R., Burruss, R., Wallace, J. K., Cady, E., ... Sivaramakrishnan, A. (2013). High-resolution infrared imaging and spectroscopy of the Z Canis Majoris system during quiescence and outburst. The Astrophysical Journal Letters, 763(1), 1-5. Article L9. https://doi.org/10.1088/2041-8205/763/1/L9

@article{a396cd44f88a43edb8138e0372166540,

title = "High-resolution infrared imaging and spectroscopy of the Z Canis Majoris system during quiescence and outburst",

abstract = "We present adaptive optics photometry and spectra in the JHKL bands along with high spectral resolution K-band spectroscopy for each component of the Z Canis Majoris system. Our high angular resolution photometry of this very young (≲1 Myr) binary, comprised of an FU Ori object and a Herbig Ae/Be star, was gathered shortly after the 2008 outburst while our high-resolution spectroscopy was gathered during a quiescent phase. Our photometry conclusively determines that the outburst was due solely to the embedded Herbig Ae/Be member, supporting results from earlier works, and that the optically visible FU Ori component decreased slightly (∼30\%) in luminosity during the same period, consistent with previous works on the variability of FU Ori type systems. Further, our high-resolution K-band spectra definitively demonstrate that the 2.294 μm CO absorption feature seen in composite spectra of the system is due solely to the FU Ori component, while a prominent CO emission feature at the same wavelength, long suspected to be associated with the innermost regions of a circumstellar accretion disk, can be assigned to the Herbig Ae/Be member. These findings clarify previous analyses of the origin of the CO emission in this complex system.",

author = "Sasha Hinkley and Lynne Hillenbrand and Oppenheimer, \{Ben R.\} and Rice, \{Emily L.\} and Laurent Pueyo and Gautam Vasisht and Neil Zimmerman and Kraus, \{Adam L.\} and Ireland, \{Michael J.\} and Douglas Brenner and Charles Beichman and Richard Dekany and Roberts, \{Jennifer E.\} and Parry, \{Ian R.\} and Roberts, \{Lewis C.\} and Crepp, \{Justin R.\} and Rick Burruss and Wallace, \{J. Kent\} and Eric Cady and Chengxing Zhai and Michael Shao and Thomas Lockhart and R{\'e}mi Soummer and Anand Sivaramakrishnan",

note = "Copyright 2013 The American Astronomical Society. Firstly published in the Astrophysical Journal Letters, 763(1), L9, 2013, published by IOP Publishing. The original publication is available at http://www.doi.org/10.1088/2041-8205/763/1/L9. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2013",

month = jan,

day = "20",

doi = "10.1088/2041-8205/763/1/L9",

language = "English",

volume = "763",

pages = "1--5",

journal = "The Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "1",

}

Hinkley, S, Hillenbrand, L, Oppenheimer, BR, Rice, EL, Pueyo, L, Vasisht, G, Zimmerman, N, Kraus, AL, Ireland, MJ, Brenner, D, Beichman, C, Dekany, R, Roberts, JE, Parry, IR, Roberts, LC, Crepp, JR, Burruss, R, Wallace, JK, Cady, E, Zhai, C, Shao, M, Lockhart, T, Soummer, R & Sivaramakrishnan, A 2013, 'High-resolution infrared imaging and spectroscopy of the Z Canis Majoris system during quiescence and outburst', The Astrophysical Journal Letters, vol. 763, no. 1, L9, pp. 1-5. https://doi.org/10.1088/2041-8205/763/1/L9

TY - JOUR

T1 - High-resolution infrared imaging and spectroscopy of the Z Canis Majoris system during quiescence and outburst

AU - Hinkley, Sasha

AU - Hillenbrand, Lynne

AU - Oppenheimer, Ben R.

AU - Rice, Emily L.

AU - Pueyo, Laurent

AU - Vasisht, Gautam

AU - Zimmerman, Neil

AU - Kraus, Adam L.

AU - Ireland, Michael J.

AU - Brenner, Douglas

AU - Beichman, Charles

AU - Dekany, Richard

AU - Roberts, Jennifer E.

AU - Parry, Ian R.

AU - Roberts, Lewis C.

AU - Crepp, Justin R.

AU - Burruss, Rick

AU - Wallace, J. Kent

AU - Cady, Eric

AU - Zhai, Chengxing

AU - Shao, Michael

AU - Lockhart, Thomas

AU - Soummer, Rémi

AU - Sivaramakrishnan, Anand

N1 - Copyright 2013 The American Astronomical Society. Firstly published in the Astrophysical Journal Letters, 763(1), L9, 2013, published by IOP Publishing. The original publication is available at http://www.doi.org/10.1088/2041-8205/763/1/L9. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2013/1/20

Y1 - 2013/1/20

N2 - We present adaptive optics photometry and spectra in the JHKL bands along with high spectral resolution K-band spectroscopy for each component of the Z Canis Majoris system. Our high angular resolution photometry of this very young (≲1 Myr) binary, comprised of an FU Ori object and a Herbig Ae/Be star, was gathered shortly after the 2008 outburst while our high-resolution spectroscopy was gathered during a quiescent phase. Our photometry conclusively determines that the outburst was due solely to the embedded Herbig Ae/Be member, supporting results from earlier works, and that the optically visible FU Ori component decreased slightly (∼30%) in luminosity during the same period, consistent with previous works on the variability of FU Ori type systems. Further, our high-resolution K-band spectra definitively demonstrate that the 2.294 μm CO absorption feature seen in composite spectra of the system is due solely to the FU Ori component, while a prominent CO emission feature at the same wavelength, long suspected to be associated with the innermost regions of a circumstellar accretion disk, can be assigned to the Herbig Ae/Be member. These findings clarify previous analyses of the origin of the CO emission in this complex system.

AB - We present adaptive optics photometry and spectra in the JHKL bands along with high spectral resolution K-band spectroscopy for each component of the Z Canis Majoris system. Our high angular resolution photometry of this very young (≲1 Myr) binary, comprised of an FU Ori object and a Herbig Ae/Be star, was gathered shortly after the 2008 outburst while our high-resolution spectroscopy was gathered during a quiescent phase. Our photometry conclusively determines that the outburst was due solely to the embedded Herbig Ae/Be member, supporting results from earlier works, and that the optically visible FU Ori component decreased slightly (∼30%) in luminosity during the same period, consistent with previous works on the variability of FU Ori type systems. Further, our high-resolution K-band spectra definitively demonstrate that the 2.294 μm CO absorption feature seen in composite spectra of the system is due solely to the FU Ori component, while a prominent CO emission feature at the same wavelength, long suspected to be associated with the innermost regions of a circumstellar accretion disk, can be assigned to the Herbig Ae/Be member. These findings clarify previous analyses of the origin of the CO emission in this complex system.

UR - https://www.scopus.com/pages/publications/84872392244

U2 - 10.1088/2041-8205/763/1/L9

DO - 10.1088/2041-8205/763/1/L9

M3 - Article

AN - SCOPUS:84872392244

SN - 2041-8205

VL - 763

SP - 1

EP - 5

JO - The Astrophysical Journal Letters

JF - The Astrophysical Journal Letters

IS - 1

M1 - L9

ER -

High-resolution infrared imaging and spectroscopy of the Z Canis Majoris system during quiescence and outburst

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this