Jill Bechtold

  • 5419 Citations
  • 39 h-Index
19902015

Research output per year

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Research Output

2015

Wide field multiband imaging of low redshift quasar environments

Scott, J. E., Rafiee, A., Bechtold, J., Ellingson, E., Thibodeau, C. & Richmond, M., Feb 20 2015, In : Astrophysical Journal. 800, 2, 93.

Research output: Contribution to journalArticle

1 Scopus citations
2014

Absorption features in the quasar HS 1603 + 3820 II. Distance to the absorber obtained from photoionisation modelling

Rózańska, A., Nikołajuk, M., Czerny, B., Dobrzycki, A., Hryniewicz, K., Bechtold, J. & Ebeling, H., Jan 1 2014, In : New Astronomy. 28, p. 70-78 9 p.

Research output: Contribution to journalArticle

6 Scopus citations

On the connection between the intergalactic medium and galaxies: The hi-galaxy cross-correlation at z < 1*

Tejos, N., Morris, S. L., Finn, C. W., Crighton, N. H. M., Bechtold, J., Jannuzi, B. T., Schaye, J., Theuns, T., Altay, G., Fèvre, O. L., Ryan-Weber, E. & Dav́e, R., Jan 1 2014, In : Monthly Notices of the Royal Astronomical Society. 437, 3, p. 2017-2075 59 p.

Research output: Contribution to journalArticle

26 Scopus citations
2013

A high molecular fraction in a subdamped absorber at z = 0.56

Crighton, N. H. M., Bechtold, J., Carswell, R. F., Davé, R., Foltz, C. B., Jannuzi, B. T., Morris, S. L., O'Meara, J. M., Prochaska, J. X., Schaye, J. & Tejos, N., Jul 1 2013, In : Monthly Notices of the Royal Astronomical Society. 433, 1, p. 178-193 16 p.

Research output: Contribution to journalArticle

17 Scopus citations
2012

Deep Chandra X-ray imaging of a nearby radio galaxy 4C+29.30: X-ray/radio connection

Siemiginowska, A., Stawarz, Ł., Cheung, C. C., Aldcroft, T. L., Bechtold, J., Burke, D. J., Evans, D., Holt, J., Jamrozy, M. & Migliori, G., May 10 2012, In : Astrophysical Journal. 750, 2, 124.

Research output: Contribution to journalArticle

11 Scopus citations
2011

Erratum: Are the variations in quasar optical flux driven by thermal fluctuations? (Astrophysical Journal (2009) 698 (895))

Kelly, B. C., Bechtold, J. & Siemiginowska, A., May 10 2011, In : Astrophysical Journal. 732, 2, 128.

Research output: Contribution to journalComment/debate

2 Scopus citations
2010

Galaxies at a redshift of ∼0.5 around three closely spaced quasar sightlines

Crighton, N. H. M., Morris, S. L., Bechtold, J., Crain, R. A., Jannuzi, B. T., Shone, A. & Theuns, T., Feb 1 2010, In : Monthly Notices of the Royal Astronomical Society. 402, 2, p. 1273-1306 34 p.

Research output: Contribution to journalArticle

15 Scopus citations

High-redshift X-ray cooling-core cluster associated with the luminous radio-loud quasar 3C 186

Siemiginowska, A., Burke, D. J., Aldcroft, T. L., Worrall, D. M., Allen, S., Bechtold, J., Clarke, T. & Cheung, C. C., Oct 10 2010, In : Astrophysical Journal. 722, 1, p. 102-111 10 p.

Research output: Contribution to journalArticle

45 Scopus citations

Lbt/lucifer observations of the z ∼ 2 lensed galaxy J0900+2234

Bian, F., Fan, X., Bechtold, J., McGreer, I. D., Just, D. W., Sand, D. J., Green, R. F., Thompson, D., Peng, C. Y., Seifert, W., Ageorges, N., Juette, M., Knierim, V. & Buschkamp, P., Dec 20 2010, In : Astrophysical Journal. 725, 2, p. 1877-1885 9 p.

Research output: Contribution to journalArticle

50 Scopus citations
2009

Alternative data reduction procedures for UVES: Wavelength calibration and spectrum addition

Thompson, R. I., Bechtold, J., Black, J. H. & Martins, C. J. A. P., May 1 2009, In : New Astronomy. 14, 4, p. 379-390 12 p.

Research output: Contribution to journalArticle

14 Scopus citations

An observational determination of the proton to electron mass ratio in the early universe

Thompson, R. I., Bechtold, J., Black, J. H., Eisenstein, D., Fan, X., Kennicutt, R. C., Martins, C., Prochaska, J. X. & Shirley, Y. L., Jan 1 2009, In : Astrophysical Journal. 703, 2, p. 1648-1662 15 p.

Research output: Contribution to journalArticle

47 Scopus citations

Are the variations in quasar optical flux driven by thermal fluctuations?

Kelly, B. C., Bechtold, J. & Siemiginowska, A., Jan 1 2009, In : Astrophysical Journal. 698, 1, p. 895-910 16 p.

Research output: Contribution to journalArticle

335 Scopus citations

Host galaxies of z = 4 quasars

McLeod, K. K. & Bechtold, J., Jan 1 2009, In : Astrophysical Journal. 704, 1, p. 415-438 24 p.

Research output: Contribution to journalArticle

14 Scopus citations

The discovery of Segue 2: A prototype of the population of satellites of satellites

Belokurov, V., Walker, M. G., Evans, N. W., Gilmore, G., Irwin, M. J., Mateo, M., Mayer, L., Olszewski, E., Bechtold, J. & Pickering, T., Aug 1 2009, In : Monthly Notices of the Royal Astronomical Society. 397, 4, p. 1748-1755 8 p.

Research output: Contribution to journalArticle

145 Scopus citations

The isolated neutron star RBS1774 revisited

Schwope, A. D., Erben, T., Kohnert, J., Lamer, G., Steinmetz, M., Strassmeier, K., Zinnecker, H., Bechtold, J., Diolaiti, E., Fontana, A., Gallozzi, S., Giallongo, E., Ragazzoni, R., De Santis, C. & Testa, V., May 1 2009, In : Astronomy and astrophysics. 499, 1, p. 267-272 6 p.

Research output: Contribution to journalArticle

12 Scopus citations
2008

A deep large binocular telescope view of the Canes Venatici I dwarf galaxy

Martin, N. F., Coleman, M. G., De Jong, J. T. A., Rix, H. W., Bell, E. F., Sand, D. J., Hill, J. M., Thompson, D., Burwitz, V., Giallongo, E., Ragazzoni, R., Diolaiti, E., Gasparo, F., Grazian, A., Pedichini, F. & Bechtold, J., Jan 1 2008, In : Astrophysical Journal. 672, 1 PART 2, p. L13-L16

Research output: Contribution to journalArticle

36 Scopus citations

A molecular probe of dark energy

Thompson, R. I., Bechtold, J., Eisenstein, D., Fan, X., Arnett, D., Martins, C., Kennicutt, R. & Black, J., Aug 5 2008, In : Advances in Space Research. 42, 3, p. 596-598 3 p.

Research output: Contribution to journalArticle

Discovery of the dust-enshrouded PROGENITOR of SN 2008S with SPITZER

Prieto, J. L., Kistler, M. D., Thompson, T. A., Yüksel, H., Kochanek, C. S., Stanek, K. Z., Beacom, J. F., Martini, P., Pasquali, A. & Bechtold, J., Jan 1 2008, In : Astrophysical Journal. 681, 1 PART 2, p. L9-L12

Research output: Contribution to journalArticle

148 Scopus citations

Go long, go deep: finding optical jet breaks for SWIFT-ERA GRBs with the lbt

Dai, X., Garnavich, P. M., Prieto, J. L., Stanek, K. Z., Kochanek, C. S., Bechtold, J., Bouche, N., Buschkamp, P., Diolaiti, E., Fan, X., Giallongo, E., Gredel, R., Hill, J. M., Jiang, L., McClelland, C., Milne, P., Pedichini, F., Pogge, R. W., Ragazzoni, R., Rhoads, J. & 3 others, Smareglia, R., Thompson, D. & Wagner, R. M., Jan 1 2008, In : Astrophysical Journal. 682, 2 PART 2, p. L77-L80

Research output: Contribution to journalArticle

20 Scopus citations

Lbt discovery of a yellow supergiant eclipsing binary in the dwarf galaxy holmberg IX

Prieto, J. L., Stanek, K. Z., Kochanek, C. S., Weisz, D. R., Baruffolo, A., Bechtold, J., Burwitz, V., De Santis, C., Gallozzi, S., Garnavich, P. M., Giallongo, E., Hill, J. M., Pogge, R. W., Ragazzoni, R., Speziali, R., Thompson, D. J. & Wagner, R. M., Jan 1 2008, In : Astrophysical Journal. 673, 1 PART 2, p. L59-L62

Research output: Contribution to journalArticle

15 Scopus citations

Observational constraints on the dependence of radio-quiet quasar X-ray emission on black hole mass and accretion rate

Kelly, B. C., Bechtold, J., Trump, J. R., Vestergaard, M. & Siemiginowska, M., Jun 1 2008, In : Astrophysical Journal, Supplement Series. 176, 2, p. 355-373 19 p.

Research output: Contribution to journalArticle

73 Scopus citations

The large binocular telescope panoramic view of the recent star formation activity in IC 2574

Pasquali, A., Leroy, A., Rix, H. W., Walter, F., Herbst, T., Giallongo, E., Ragazzoni, R., Baruffolo, A., Speziali, R., Hill, J., Beccari, G., Bouché, N., Buschkamp, P., Kochanek, C., Skillman, E. & Bechtold, J., Nov 10 2008, In : Astrophysical Journal. 687, 2, p. 1004-1018 15 p.

Research output: Contribution to journalArticle

15 Scopus citations

The structural properties and star formation history of Leo T from deep LBT photometry

De Jong, J. T. A., Harris, J., Coleman, M. G., Martin, N. F., Bell, E. F., Rix, H. W., Hill, J. M., Skillman, E. D., Sand, D. J., Olszewski, E. W., Zaritsky, D., Thompson, D., Giallongo, E., Ragazzoni, R., DiPaola, A., Farinato, J., Testa, V. & Bechtold, J., Jun 20 2008, In : Astrophysical Journal. 680, 2, p. 1112-1119 8 p.

Research output: Contribution to journalArticle

63 Scopus citations
2007

Absorption spectrum of the quasar HS1603+3820

Dobrzycki, A., Nikolajuk, M., Bechtold, J., Ebeling, H., Czerny, B. & Rózańska, A., Dec 2007, In : Astronomy and astrophysics. 476, 3, p. 1205-1217 13 p.

Research output: Contribution to journalArticle

1 Scopus citations

Evolution of the X-ray emission of radio-quiet quasars

Kelly, B. C., Bechtold, J., Siemiginowska, A., Aldcroft, T. & Sobolewska, M., Mar 1 2007, In : Astrophysical Journal. 657, 1 I, p. 116-134 19 p.

Research output: Contribution to journalArticle

47 Scopus citations

The 300 kpc long X-ray jet in PKS 1127-145, z = 1.18 quasar: Constraining X-ray emission models

Siemiginowska, A., Stawarz, ŁU., Cheung, C. C., Harris, D. E., Sikora, M., Aldcroft, T. L. & Bechtold, J., Mar 1 2007, In : Astrophysical Journal. 657, 1 I, p. 145-158 14 p.

Research output: Contribution to journalArticle

44 Scopus citations

The elongated structure of the Hercules dwarf spheroidal galaxy from deep Large Binocular Telescope imaging

Coleman, M. G., De Jong, J. T. A., Martin, N. F., Rix, H. W., Sand, D. J., Bell, E. F., Pogge, R. W., Thompson, D. J., Hippelein, H., Giallongo, E., Ragazzoni, R., DiPaola, A., Farinato, J., Smareglia, R., Testa, V., Bechtold, J., Hill, J. M., Garnavich, P. M. & Green, R. F., Jan 1 2007, In : Astrophysical Journal. 668, 1 PART 2, p. L43-L46

Research output: Contribution to journalArticle

63 Scopus citations

Virial masses of black holes from single epoch spectra of active galactic nuclei

Kelly, B. C. & Bechtold, J., Jan 1 2007, In : Astrophysical Journal, Supplement Series. 168, 1, p. 1-18 18 p.

Research output: Contribution to journalArticle

40 Scopus citations
2006

AGN feedback and evolution of radio sources: Discovery of an x-ray cluster associated with Z=1 quasar

Siemiginowska, A., Cheung, C. C., La Massa, S., Burke, D., Aldcroft, T. L., Bechtold, J., Elvis, M. & Worrall, D. M., 2006, X-ray Universe 2005. 604 ed. p. 705-709 5 p. (European Space Agency, (Special Publication) ESA SP; vol. 2, no. 604).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Elemental abundance measurements in low-redshift damped Lyman α absorbers

Meiring, J. D., Kulkarni, V. P., Khare, P., Bechtold, J., York, D. G., Cui, J., Lauroesch, J. T., Crotts, A. P. S. & Nakamura, O., Jul 1 2006, In : Monthly Notices of the Royal Astronomical Society. 370, 1, p. 43-62 20 p.

Research output: Contribution to journalArticle

44 Scopus citations
2005

Molecular hydrogen in the damped Lyα absorber of Q1331+170

Cui, J., Bechtold, J., Jian, G. E. & Meyer, D. M., Nov 10 2005, In : Astrophysical Journal. 633, 2 I, p. 649-663 15 p.

Research output: Contribution to journalArticle

59 Scopus citations

The discovery of extended thermal X-ray emission from PKS 2152-699: Evidence for a "jet-cloud" interaction

Ly, C., De Young, D. S. & Bechtold, J., Jan 10 2005, In : Astrophysical Journal. 618, 2 I, p. 609-617 9 p.

Research output: Contribution to journalArticle

8 Scopus citations

X-ray cluster associated with the z = 1.063 CSS quasar 3C 186: The jet is not frustrated

Siemiginowska, A., Cheung, C. C., Lamassa, S., Burke, D. J., Aldcroft, T. L., Bechtold, J., Elvis, M. & Worrall, D. M., Oct 10 2005, In : Astrophysical Journal. 632, 1 I, p. 110-121 12 p.

Research output: Contribution to journalReview article

39 Scopus citations
2004

X-ray emission from the quasar PKS 1127-145: Comptonized infrared photons on parsec scales

Błazejowski, M., Siemiginowska, A., Sikora, M., Moderski, R. & Bechtold, J., Jan 1 2004, In : Astrophysical Journal. 600, 1 II, p. L27-L30

Research output: Contribution to journalArticle

11 Scopus citations
2003

Adaptive optics echelle spectrograph for radial velocity studies

Reynolds, R. O., Ge, J., Lloyd-Hart, M. & Bechtold, J., Dec 1 2003, In : Proceedings of SPIE - The International Society for Optical Engineering. 5170, p. 283-291 9 p.

Research output: Contribution to journalConference article

Chandra discovery of an X-ray jet and extended X-ray structure in the z = 0.63 Quasar B2 0738+313

Siemiginowska, A., Stanghellini, C., Brunetti, G., Fiore, F., Aldcroft, T. L., Bechtold, J., Elvis, M., Murray, S. S., Antonelli, L. A. & Colafrancesco, S., Oct 1 2003, In : Astrophysical Journal. 595, 2 I, p. 643-655 13 p.

Research output: Contribution to journalArticle

25 Scopus citations

Chandra survey of radio-quiet, high-redshift quasars

Bechtold, J., Siemiginowska, A., Shields, J., Czerny, B., Janiuk, A., Hamann, F., Aldcroft, T. L., Elvis, M. & Dobrzycki, A., May 1 2003, In : Astrophysical Journal. 588, 1 I, p. 119-127 9 p.

Research output: Contribution to journalReview article

68 Scopus citations

Discovery of X-ray jets in GPS sources

Siemiginowska, A., Stanghellini, C., Brunetti, G., Aldcroft, T. L., Bechtold, J., Elvis, M. & Harris, D. E., Oct 2003, In : New Astronomy Reviews. 47, 6-7, p. 467-469 3 p.

Research output: Contribution to journalShort survey

2 Scopus citations

X-ray Emission from Gigahertz Peaked/Compact Steep Spectrum Sources

Siemiginowska, A., Aldcroft, T. L., Elvis, M., Bechtold, J., Brunetti, G. & Stanghellini, C., Jan 1 2003, In : Publications of the Astronomical Society of Australia. 20, 1, p. 113-117 5 p.

Research output: Contribution to journalArticle

10 Scopus citations
2002

A uniform analysis of the Lyα forest at z = 0-5. III. Hubble Space Telescope faint object spectrograph spectral atlas

Bechtold, J., Dobrzycki, A., Wilden, B., Morita, M., Scott, J., Dobrzycka, D., Tran, K. V. & Aldcroft, T. L., Jun 1 2002, In : Astrophysical Journal, Supplement Series. 140, 2, p. 143-238 96 p.

Research output: Contribution to journalReview article

49 Scopus citations

A uniform analysis of the Lyα forest at z = 0-5. IV. The clustering and evolution of clouds at z ≤ 1.7

Dobrzycki, A., Bechtold, J., Scott, J. & Morita, M., Jun 1 2002, In : Astrophysical Journal. 571, 2 I, p. 654-664 11 p.

Research output: Contribution to journalArticle

13 Scopus citations

A uniform analysis of the Lyα forest AT z = 0-5. V. The extragalactic ionizing background at low redshift

Scott, J., Bechtold, J., Morita, M., Dobrzycki, A. & Kulkarni, V. P., Jun 1 2002, In : Astrophysical Journal. 571, 2 I, p. 665-692 28 p.

Research output: Contribution to journalArticle

56 Scopus citations

Chandra discovery of a 300 kiloparsec X-ray jet in the gigahertz-peaked spectrum quasar PKS 1127-145

Siemiginowska, A., Bechtold, J., Aldcroft, T. L., Elvis, M., Harris, D. E. & Dobrzycki, A., May 10 2002, In : Astrophysical Journal. 570, 2 I, p. 543-556 14 p.

Research output: Contribution to journalArticle

82 Scopus citations
2001

A search for signatures of quasar evolution: Comparison of the shapes of the rest-frame optical/ultraviolet continua of quasars at z > 3 and z ∼ 0.1

Kuhn, O., Elvis, M., Bechtold, J. & Elston, R., Oct 1 2001, In : Astrophysical Journal, Supplement Series. 136, 2, p. 225-264 40 p.

Research output: Contribution to journalReview article

39 Scopus citations

Chandra detection of X-ray absorption associated with a damped Lyα system

Bechtold, J., Jan 1 2001, In : Astrophysical Journal. 562, 1 PART I, p. 133-138 6 p.

Research output: Contribution to journalArticle

21 Scopus citations

H2, C I, Metallicity, and dust depletion in the z = 2.34 damped Lyα absorption system toward QSO 1232+0815

Ge, J., Bechtold, J. & Kulkarni, V. P., Jan 20 2001, In : Astrophysical Journal. 547, 1 PART 2, p. L1-L5

Research output: Contribution to journalArticle

42 Scopus citations
2000

150 keV emission from PKS 2149-306 with BeppoSAX

Elvis, M., Fiore, F., Siemiginowska, A., Bechtold, J., Mathur, S. & McDowell, J., Nov 10 2000, In : Astrophysical Journal. 543, 2 PART 1, p. 545-551 7 p.

Research output: Contribution to journalArticle

13 Scopus citations

A uniform analysis of the Lyα forest at z = 0-5. I. The sample and distribution of clouds at z > 1.7

Scott, J., Bechtold, J. & Dobrzycki, A., Sep 1 2000, In : Astrophysical Journal, Supplement Series. 130, 1, p. 37-66 30 p.

Research output: Contribution to journalArticle

14 Scopus citations

A uniform analysis of the Lyα forest at z = 0-5. II. Measuring the mean intensity of the extragalactic ionizing background using the proximity effect

Scott, J., Bechtold, J., Dobrzycki, A. & Kulkarni, V. P., Sep 2000, In : Astrophysical Journal, Supplement Series. 130, 1, p. 67-89 23 p.

Research output: Contribution to journalArticle

134 Scopus citations
1998

Q1208 +1011: Search for the lensing galaxy

Siemicinowska, A., Bechtold, J., Aldcroft, T. L., Mcleod, K. K. & Keeton, C. R., Jan 1 1998, In : Astrophysical Journal. 503, 1 PART I, p. 118-124 7 p.

Research output: Contribution to journalArticle

8 Scopus citations